- APA Formatting and Style Guide: The Owl at Perdue
- Citation Machine Formats single citations in APA or MLA style
- Citation Wizard (from the Illinois Mathematics and Science Academy) Formats single citations of digital information resoruces only in APA, chicago, CBE, ISO or MLA style.
- KnightCite (a project of the Hekman Library, Calvin College) Formats single citations in MLA, APA or Chicago style.
- Plagiarism: The Owl at Perdue: "Is it Plagiarism yet?"
- RapidCite Formats citations in MLA, APA or Chicago style and creates an unfished "Works Cited" page in the order citations were entered.
- Zotero "is a free, easy-to-use Firefox extension to help you collect, manage, cite, and share your research sources."