A source can remain in a reference list after its paragraph has been cut. A citation can also survive in the text while its reference entry disappears during editing. A two-way audit helps you find both problems. This guide uses three worked cases rather than treating a long bibliography as evidence of careful research.
Define which list you are checking
Start with the assignment and required citation style. A list limited to sources cited in the text may differ from a bibliography that permits wider background reading. Some source types also have special rules. The example below explicitly assumes a list of materials used in the text. It is an organisational exercise, not an APA, MLA or other formatting template.
A complete fictional starting point
Materials A, B and C, and every claim in this exercise, are invented teaching examples. They are not real publications or references to copy into an assignment. Imagine you read all three materials. Paragraph P2 says: “Material A describes an additional evening opening.” Paragraph P5 says: “Material C describes a revised booking form.” Your source list contains B and C.
| Material | Use in the draft | List entry | Action |
|---|---|---|---|
| A | Attributed in P2 | Missing | Recover the record for the source actually read and add its required reference details. |
| B | No use located | Present | Check for an unacknowledged idea before deciding whether the entry is unused. |
| C | Attributed in P5 | Present | Verify the source identity, the claim it supports and the entry details. |
A citation and an entry can match while the cited claim is still inaccurate. The C pair is therefore a starting point for verification, not proof that the paragraph is well supported. Read the relevant passage again.
The corrected result, including the decision about B
For this exercise, checking the materials confirms that A supports P2 and C supports P5. B supplied background reading but no words or ideas used in the draft. Under the list rule chosen above, the corrected mapping is P2 → A and P5 → C; the final exercise list contains A and C. Keep B in your reading notes. In a real assignment, replace the exercise labels with complete, verified references in the required style.
If a sentence in P4 actually relied on B, the repair would be different: acknowledge B at the relevant point and retain its entry. Do not delete a reference without checking the prose it may support. Equally, do not insert an irrelevant sentence just to make an unused entry look necessary.
Run the audit in both directions
- From text to list: locate each citation, note or source acknowledgement, including those in tables and figure captions, and find its corresponding record where the applicable rules require one.
- From list to text: identify the actual use of each entry, or document why your assignment permits its inclusion as background material.
- Check identity: confirm that the work, edition and date correspond to the source you consulted. Two similar titles are not automatically the same source.
- Check details against that source or a reliable bibliographic record. Do not invent an author, page range, publication date or DOI to complete a field.
Keep uncertainty visible
If you cannot identify an entry, mark it unresolved while you investigate. A search result with similar words does not establish that it is the item you read. If your knowledge of a study comes only through another source, document that route according to your citation requirements rather than implying direct access to the original.
A reference manager can help maintain records, but inspect the exported document after major edits. Check that the correct record was inserted, not simply that a citation field exists. A short repair log might read: “A added from verified record; B excluded after checking its role; C identity and support checked.” Keep private notes and restricted materials secure.
Source and next step
Oxford's plagiarism and citation guidance, accessed on 1 November 2026, supports transparent acknowledgement of sources actually consulted. Its institutional requirements apply in their own context; follow your course rules. The three-case audit above is an original editorial exercise, not a quotation or prescribed template from Oxford.
Continue with the student submission workflow to place this check within final preparation. Turnin is an independent pre-submission review brand, not an official Turnitin service. This audit does not guarantee a detection score, academic judgement or acceptance.