How to Format References Before Submitting Your Paper

You’re at the last revision and the journal asks for “properly formatted references” — now what?

Formatting references is one of those finishing tasks that can stall a submission: the content is ready but citations look inconsistent, URLs are missing, or the reference style doesn’t match the journal’s instructions. The end result you want is a single clean reference section (and matching in-text citations) that follow the journal’s required style exactly and contain accurate identifiers like DOIs or persistent URLs.

Decide the required reference style and get its plain rules

Before editing a single line, confirm the journal or conference’s preferred style (APA, Chicago, Vancouver, IEEE, MLA, or a house style). Check the “Instructions for Authors” page or the submission portal — some journals use a numbered Vancouver variant or their own tweaks (punctuation, order of elements, whether to include issue numbers, how to format page ranges).

Once identified, download the style guide summary or the journal’s bibliographic examples. For quick checks keep a one-page cheat sheet with examples for: article, book, book chapter, conference paper, report, thesis, dataset, and preprint.

Use a reference manager to avoid manual errors

Import your references into a citation manager (Zotero, Mendeley, EndNote, or the built-in tool in your word processor). A manager lets you: export a reference list in the journal’s style, update metadata in bulk, and search for missing DOIs. If you haven’t used one, create a project/library and import the citations from the databases you used (PubMed, Scopus, Google Scholar exports, RIS or BibTeX files).

Practical tip: check each imported entry for completeness — title capitalization, journal name (full vs. abbreviated), author order, and publication year. Managers often carry imperfect data; a quick manual sweep prevents ugly, incorrect entries.

Standardize in-text citations and ensure they match the reference list

Decide whether your manuscript uses author-date (e.g., Smith, 2020) or numbered citations ([1]). Use the citation manager’s insert-citation function rather than typing citations manually. Then run a two-way check: every in-text citation must appear in the reference list and every reference must be cited in the text (unless the journal allows uncited references).

Clean core fields and common traps to fix

Work through these items methodically for each entry:

• Authors: verify spelling, initials vs. full names according to style, and “et al.” rules (how many authors before truncation).
• Titles: correct capitalization (sentence vs. title case) and remove HTML entities or accidental line breaks.
• Journal names: use the format the journal requests — full name or standard abbreviation. Confirm via the journal’s style sheet or the NLM Catalog for medical journals.
• Volume/issue/pages: ensure page ranges use en-dash or hyphen based on style, and include issue numbers only if required.
• DOIs and URLs: include DOIs as full links (https://doi.org/…) if the style requires; for datasets or preprints include persistent links. Remove session IDs or long tracking parameters from URLs.
• Publication types: label conference proceedings, preprints, datasets, and technical reports correctly — these often have special formatting rules.

Format the reference list: order, punctuation, and spacing

Generate the list from your citation manager in the chosen style, then inspect:

• Order: alphabetical by author (author-date styles) or numerical by citation order (Vancouver/IEEE).
• Punctuation and italics: check that journal titles, book titles, and volume numbers are italicized where required and that commas/periods follow the style’s pattern.
• Spacing and hanging indents: most styles use a hanging indent for references; ensure consistent line spacing (single vs. double) per submission rules.

Special cases: preprints, datasets, software, and unusual sources

Preprints: treat them like articles but include the server name (bioRxiv, arXiv) and a DOI or preprint identifier. Datasets: cite the dataset creator, year, dataset title, repository, and persistent identifier (DOI/URL). Software: include version, author/organization, and where it’s hosted. Always follow the style’s examples or the journal’s guidance for these items.

Run final automated and manual checks before submission

Automated checks:

• Use the citation manager’s “refresh citations” or “reformat bibliography” after any edits.
• Run a find/replace for common mistakes (e.g., “et al.” variations, smart quotes, broken DOI formats).

Manual checks:

• Pick 10 random references and verify them against the original sources (journal webpage or CrossRef) for accuracy.
• Scan for unmatched citations: search for “et al.” inconsistencies, years that don’t match, or duplicate entries under slightly different titles.

Troubleshooting style mismatches and last-minute journal requests

If the submission portal requires a different style than your manuscript, reformat using your citation manager’s style options and then inspect for small differences the manager may not capture (punctuation or capitalization quirks). If the journal provides a downloadable reference template or Word sample, copy one reference and match the manager’s output to that example by editing the style or making minimal manual corrections.

When to leave formatting to the publisher

Some journals accept a consistent author-year or numbered list and will apply house formatting during production. Check the submission guidelines: if they explicitly say “formatting will be handled after acceptance,” ensure your list is internally consistent and complete rather than perfectly styled.

Quick pre-submission checklist you can run in 10 minutes

Walk through these: citation manager exported to the correct style, DOIs checked and formatted, in-text citations matched to the list, no duplicates, hanging indent/spacing consistent, and special sources properly labeled.