Nature citation style: a complete guide with examples

Nature style is the compact numeric system used by Nature and the journals in the Nature portfolio, and many science departments borrow it for theses because it keeps prose clean: citations are superscript numbers, and each reference compresses into a single dense line.

The format is distinctive even among numeric styles. Authors are written surname first with an ampersand before the last name, article titles run in plain sentence case with no quotation marks, journal names are abbreviated and italicised, the volume number is bold, and the year sits in parentheses at the very end of the entry.

This guide covers the superscript conventions, the reference formats for the main source types, worked examples including a classic paper, the errors that get flagged, and how to generate Nature-style references automatically.

Where Nature referencing style is used

Nature and its sister journals share the core format described here, with small per-journal variations, so if you are submitting a manuscript, always check the author guidelines of the specific journal you are targeting. The thesis case is simpler: departments in physics, chemistry, and the life sciences sometimes name Nature style in their handbooks because the compressed entries keep a long bibliography manageable.

If your handbook names Nature style without further detail, the conventions below are the safe defaults. The usual order of authority applies: your local guide first, the journal's guide second, and consistency above all. If you move between a thesis and a journal submission, expect to adjust small details, such as whether article titles are included; the skeleton stays the same.

One caution: 'Nature style' in a departmental handbook sometimes just means 'something numeric and compact'. If your supervisor has marked earlier theses, ask to see an accepted reference list; ten minutes of comparison beats a week of reformatting.

Nature in-text citations: superscript numbers

Citations are superscript numerals assigned in order of first appearance, and Nature places them after punctuation, which is the opposite instinct to bracketed styles. If two sources support different halves of a sentence, split the superscripts and place each after the clause it belongs to. The examples below show numbers inline; in your document they are superscript.

The conventions:

• Number sources in order of first appearance; each source keeps its number for the whole document.
• Superscripts follow punctuation: at the end of a sentence, the number comes after the period.
• Separate multiple citations with commas and no spaces: 1,3.
• Compress consecutive runs into ranges: 4-6.
• If you name authors in prose, keep the superscript: 'as Watson and Crick proposed1'.

The Nature reference list: authors, titles, and layout

Each entry packs authors, title, journal, volume, pages, and year into one line with almost no connective tissue. The element order never changes, and typography does real work: italics mark the journal, bold marks the volume. Strip those and an entry becomes genuinely ambiguous, which is why markers check them. There is no 'vol.', no 'pp.', and no month; position in the line tells the reader what each element is.

The rules for every entry:

• Authors: surname first, then initials with periods: Chen, L.
• An ampersand, not 'and', before the final author: Chen, L. & Okafor, P.
• More than five authors: give the first author followed by et al.
• Article titles: sentence case, no quotation marks, roman type.
• Journal names: italic and abbreviated: Nature, Nat. Commun., Phys. Rev. Lett.
• Volume in bold, then the page range, then the year in parentheses: 586, 210-216 (2020).

How Nature style differs from IEEE, Vancouver, and AMA

If you have written in another numeric style before, recalibrate on a few points before you start. The compression is deliberate: a Nature reference is built to be scanned on a dense journal page, and every element earns its place.

What changes when you switch to Nature style:

• Superscript numbers follow the punctuation, where IEEE brackets sit inside the sentence.
• An ampersand, never 'and', joins the final two authors.
• The et al threshold is five authors, lower than Vancouver's six or AMA's seven.
• Article titles carry no quotation marks, unlike IEEE.
• The year comes last, in parentheses, instead of sitting inside a date block.
• Typography is load-bearing: italic journal, bold volume, and no labels to compensate.

Journal articles in Nature style

The template: Author, A. B. & Author, C. D. Title of the article in sentence case. Abbrev. J. volume, pages (year).

A classic entry, formatted the Nature way: Watson, J. D. & Crick, F. H. C. Molecular structure of nucleic acids: a structure for deoxyribose nucleic acid. Nature 171, 737-738 (1953). Note the ampersand, the plain sentence-case title, the italic journal name, the bold volume, and the year closing the entry in parentheses. Entries this old still format cleanly, which is a quiet argument for the system: the elements have not changed in seventy years.

For a modern consortium paper with more than five authors, the entry collapses to one name: Chen, L. et al. A made-up title about genome-scale imaging. Nat. Methods 21, 1440-1452 (2024). One author, et al., and nothing else changes. Add a DOI only if your department asks for one; the journal itself relies on volume and pages. A later paper from the same consortium gets its own number and its own entry; et al never merges sources.

Books, chapters, and preprints in Nature style

A book compresses to author, italic title, and a parenthetical publisher and year: Author, A. B. Title of the Book (Publisher, 2019). Pinpoint with a chapter or page marker before the parenthesis when you need one: Title of the Book Ch. 3 (Publisher, 2019). Editions appear as a numbered 'edn' after the title: Title of the Book 3rd edn (Publisher, 2021).

A chapter in an edited volume uses the 'in' construction, and the chapter title is usually omitted: Author, A. B. in Title of the Book (eds Editor, C. & Editor, D.) 45-70 (Publisher, 2018). The editors and page range carry the load that a chapter title would in other styles.

Preprints are cited with a 'Preprint at' statement naming the repository record, typically an arXiv or bioRxiv identifier with the year. Label them clearly: a reader should never mistake a preprint for the version of record, and an examiner will check. The usual phrasing is 'Preprint at' followed by the repository record and the year; the generator linked below produces the exact wording so you do not need to memorise it.

Websites, datasets, and code in Nature style

Web sources give the author or organisation, the page title, the site name, the address, and the year. Keep them to a minimum in a thesis: where a peer-reviewed source for the same claim exists, cite it instead, and reserve web citations for things that only exist on the web, such as software documentation or official statistics portals. If the page has a named author, prefer the person over the organisation; otherwise the organisation stands as author.

Data and code deserve first-class treatment. Name the repository and the dataset's DOI in the reference list rather than burying an address in a footnote, and treat a dataset like any other numbered source: it gets its own entry and its own superscript. The same goes for an archived code release. If you generated the dataset yourself and deposited it, cite your own deposit; examiners increasingly expect data availability to be visible in the reference list, not only in a statement.

Worked example: a results sentence and its references

Consider: 'The double-helix model1 predicted semiconservative replication, which was confirmed experimentally2 and is now textbook material3.' Each superscript follows the words it supports, and every source keeps its number for the rest of the document.

Two of these are real papers you can retrieve today; the third shows the book pattern. That retrievability is the standard your own list is held to: every entry must lead somewhere.

The matching reference list:

• 1. Watson, J. D. & Crick, F. H. C. Molecular structure of nucleic acids: a structure for deoxyribose nucleic acid. Nature 171, 737-738 (1953).
• 2. Meselson, M. & Stahl, F. W. The replication of DNA in Escherichia coli. Proc. Natl Acad. Sci. USA 44, 671-682 (1958).
• 3. Alberts, B. et al. Molecular Biology of the Cell 6th edn (Garland Science, 2015).

Common Nature citation errors

What referees and examiners flag most often. Check your list against these before submission:

• Superscripts placed before punctuation; Nature puts them after.
• An unbolded volume or an unitalicised journal name, which makes the entry ambiguous.
• Quotation marks or title case on article titles.
• Writing 'and' instead of the ampersand before the final author.
• Listing six or more authors in full instead of first author plus et al.
• Dropping the parentheses around the year, or moving the year forward in the entry.
• Adding 'pp.' or 'vol.' labels; Nature uses position and typography instead.
• Renumbering by hand after inserting a citation and missing a later occurrence.

Typography is part of the citation

Nature style leans on formatting more than any other numeric style: an italic word means journal, a bold number means volume, a parenthesised number at the end means year. That makes it quick to read and easy to break. Copy a reference through a plain-text editor and the italics and bold vanish, leaving an entry that looks complete but no longer parses.

This is why Nature-style bibliographies are painful to maintain by hand in a word processor and why they are the strongest case for generating references from structured data, where the typography is applied at render time rather than typed. Generated entries also cannot quietly lose a bold volume in a late copy-paste; the style is reapplied every time the document renders.

Generate Nature citations automatically

The free Nature citation generator produces a correctly compressed entry from a DOI or paper details, ampersand and bold volume included. Generators for all twelve supported styles work the same way, which helps if your department changes its mind mid-programme.

In CiteDash, the Reference Manager stores citations as database objects linked to real papers, derives the numbering from your text, and renders the bibliography in Nature style or any of the other eleven. When you compile with the Thesis Assembler, the bibliography is rendered with citeproc into DOCX, PDF, or LaTeX, so the italics, bold volumes, and parenthesised years come out right without any hand-formatting, and every entry resolves to a real paper rather than free text.