Guide library12 guides
Field-Specific
Citation guides for individual disciplines, from psychology, history, and literature to medicine, engineering, law, and nursing.
Every guide is free, written for students and researchers, and dated so you can see when it was last checked.

How to Cite Psychology Sources in APA Style
Cite psychology sources in APA 7th edition: empirical articles, DSM-5-TR, tests and measures, PsyArXiv preprints, and archived data, using official Publication Manual examples.
How to Cite Sources in History: Chicago Notes-Bibliography
Cite primary and secondary sources for a history paper in Chicago Manual of Style 18th edition. Official CMOS 18 Quick Guide samples, AHA documentation rules, and the failure modes seminar papers actually hit.
How to Cite Literature in MLA 9 (and Chicago When Assigned)
Cite the edition a literature student actually read in MLA 9: novels, poems, plays, translations, critical editions, e-books, and criticism, plus CMOS 18 notes when a seminar requires them.
How to Cite Medical Sources in Vancouver and AMA
Cite journal articles, RCTs, guidelines, Cochrane reviews, preprints, trial registrations, package inserts, and retracted papers in AMA 11th edition and Vancouver (ICMJE/NLM), using official samples rather than invented papers.
How to Cite Engineering Sources in IEEE Style
Build IEEE references for engineering journal articles, conference papers, standards, patents, reports, software, and theses from the IEEE Reference Guide (updated 12 August 2022), using official examples.
How to Cite Biology Sources in CSE Style
Build CSE 9th-edition references for biology journals, books, GenBank records, BLAST and ImageJ methods, preprints, and lab reports from The CSE Manual Chapter 29, using official examples rather than invented papers.
How to Cite Chemistry Sources in ACS Style
Write ACS references for chemistry journals, patents, SDS files, CAS and PubChem records, datasets, and theses from the ACS Guide Quick Guide (updated 14 April 2026). Official examples, not invented catalysts.
Law Citation Guide: Bluebook Basics for Cases, Statutes, and Briefs
Cite U.S. cases, statutes, constitutions, and regulations in Bluebook 22nd edition. Official Georgetown, UW, and CWRU examples, Bluepages versus Whitepages, signals, short forms, and unpublished opinions.
How to Cite Business Sources in Harvard and APA: Cases, 10-Ks, and Reports
Cite HBS cases, SEC Form 10-Ks, Harvard Business Review essays, McKinsey reports, and NBER working papers in Cite Them Right Harvard and APA 7, using official wording and real examples.
How to Cite Education Sources in APA 7
Cite education journal articles, ERIC documents, NCES reports, standards, dissertations, and classroom observations in APA 7th edition, with official examples and AERA rules.
Nursing Citation Guide: APA 7 for Clinical Sources
Cite nursing sources in APA 7th edition: journal articles, NICE and AACN guidelines, UpToDate, Cochrane reviews, the 2025 ANA Code of Ethics, textbooks, and DNP projects, using official examples.
How to Cite Social Work Sources in APA 7
Cite social work journals, the 2021 NASW Code of Ethics, CSWE 2022 EPAS, the 2025 DSW standards, Child Maltreatment 2024, the 2026 KIDS COUNT Data Book, statutes, and field notes in APA 7th edition.