If you wrote a research paper, report, article, or dissertation chapter from notes, this guide is for you. You need your current draft, the sources you used, and a way to mark sentences, on paper or on screen.
The aim is not to add citations everywhere. It is to find claims a reader could reasonably ask you to support. If your answer is, “I learned it from a source,” the claim may need a citation, even when none of the source’s wording, figures, or quotations remain.
1. Make a working copy of the draft
Save a copy called “citation audit” before changing anything. Turn on comments or prepare three highlighter colours.
Start with the body, not the reference list. A complete reference list cannot repair a claim with no citation beside it. Read from the introduction to the conclusion, one paragraph at a time.
Give yourself room to mark individual sentences. A long sentence can contain several claims, so do not treat a paragraph as one unit.
2. Underline every sentence that makes a claim
Read only for assertions. Underline a sentence if it says that something happened, exists, causes an effect, has a meaning, follows a pattern, or works better than an alternative.
Include sentences that sound like background. “The policy was introduced after a period of public concern” is a historical claim. “This pattern is common in rural hospitals” is a generalisation. Both need support unless they come from your own documented data or evidence presented in the draft.
Leave out sentences that only signpost the argument, such as “The next section considers two explanations.” Leave out clearly labelled personal reflection unless it also makes a factual claim.
3. Label the origin of each underlined claim
Write one label in the margin: S for source, O for your own observation or data, R for reasoning, or M for mixed.
A source-dependent claim is one whose substance came from something you read, watched, heard, or consulted. It can be fully rewritten in your own style and still depend on that source. Paraphrasing changes wording, not the origin of an idea. Purdue OWL’s guidance on paraphrasing makes the same point: another author’s ideas need attribution even when expressed in your own words.
Use this table when the label is unclear:
| What the sentence does | Likely label | What to check |
|---|---|---|
| Reports a date, event, finding, definition, or interpretation | S | Find the source that supports it |
| Explains what your interview, experiment, or close reading showed | O | Check that your method or evidence is described |
| Draws a conclusion from cited evidence just presented | R | Check that the underlying evidence is cited |
| Combines a source finding with your interpretation | M | Cite the finding and make your contribution clear |
For example, “Participants described the form as confusing” is O if you conducted and documented the interviews. It is S if you learned it from a published study. “This suggests the form’s instructions should be shorter” is usually R, but it depends on cited evidence before it.
4. Split mixed sentences into separate parts
Take every sentence labelled M and divide it at words such as “therefore,” “which shows,” “because,” “suggests,” and “but.” These joins often hide the boundary between a source’s finding and your reasoning.
Consider: “Because coastal flooding disrupted transport routes, the council’s delayed response was politically damaging.” The disruption is a source-dependent factual claim. The judgment about political damage may be your analysis, but it still needs cited evidence that lets a reader follow it.
A clearer audit version is: “Coastal flooding disrupted several transport routes [citation]. The council’s response then became a focus of criticism, suggesting that the delay had political consequences [citation or specific evidence].”
You do not have to keep the split version in the final draft. Use it during the audit to identify what each citation must support. Tighten the prose after that work is done.
5. Find the exact source behind every S label
For each S sentence, write the source name in a comment. Do not settle for “one of my articles” or “lecture notes.” Open the source and locate the passage, table, page, chapter, recording timestamp, or dataset that supports the claim.
Check three things:
- Match: Does the source support this precise claim?
- Scope: Does it apply to the people, period, place, or conditions in your sentence?
- Strength: Does your wording overstate a qualified or limited finding?
This matters with broad claims. A study of one school does not automatically support “schools” in general. A source saying two variables were associated does not, by itself, support a claim that one caused the other.
If you cannot locate support within a few minutes, mark the sentence “verify.” Do not add a citation from memory. The Chicago Manual of Style citation guide can help you choose the required citation form. First establish that the source supports the statement.
6. Put citations beside the claims they support
Insert the citation directly after the source-dependent claim, using the required style. If several adjacent sentences come from the same source, cite the first sentence and cite again when the source connection could become unclear.
Use a page number, section, paragraph, or timestamp when your required style calls for a pinpoint location, especially when discussing a specific argument or passage. Citation styles use different formats. The MLA Style Center’s guidance on in-text citations can help with MLA conventions, but your assignment or publication instructions take priority.
Cite the source you actually used. Do not cite a review article as though you read a study it mentions unless you consulted that study yourself. If the original is unavailable, describe the source relationship honestly and follow your style guide’s rules for secondary citation.
7. Re-read transitions and conclusions
Read only the first and last sentence of every paragraph. These positions often make the largest claims and can slip past a line-by-line review.
Inspect words that expand a claim: “proves,” “always,” “clearly,” “widely,” “the main reason,” “led to,” and “demonstrates.” Narrow the wording when your evidence supports a narrower statement.
Then inspect the conclusion. A conclusion can synthesise cited discussion without repeating every citation. It should not introduce a new factual claim, historical detail, or research finding without support.
8. Run the final citation audit
Read the draft once more with all source files open. For every in-text citation, confirm that a matching entry appears in the reference list. For every reference-list entry, ask whether it is cited in the text, unless your required style permits uncited background reading.
You can use a citation checker to compare citations, references, and similarities with other writing. Treat similarity results as leads to inspect, not proof that a passage was used improperly. The important decision is whether your wording, attribution, and evidence represent the source accurately.
Before you submit, run through this checklist:
- I checked each sentence that makes a factual, historical, analytical, or general claim.
- I identified whether each important claim comes from a source, my own evidence, or my reasoning.
- I found exact support for every source-dependent claim.
- My wording does not make a source sound broader or more certain than it is.
- Citations sit beside the claims they support.
- Every in-text citation matches a reference-list entry.
- My conclusion introduces no unsupported evidence or claim.
- I reviewed any similarity flags in context before making changes.
