Different disciplines or majors have their own guidelines and styles for citations. Check with your instructor or publisher for the preferred style before you submit your project.
On this page
- General citation guides
- Subject-specific citation guides
- Citation management tools
- Get help with citations
General citation guides
Check out the Online Writing Lab (OWL) from Purdue for a comprehensive guide.
American Psychological Association (APA)
Used in: Social sciences
- APA quick citation guide (Penn State University)
- OWL APA guide (Purdue University)
Chicago Manual of Style
Used in: History, some social sciences
- Chicago Manual of Style Online, 17th ed. (sign in with your NetID to view)
- Chicago Manual of Style, 16th ed. (sign in with your NetID to view)
Modern Language Association (MLA)
Used in: Humanities
- MLA Handbook Plus (sign in with your NetID to view)
- OWL MLA guide (Purdue University)
Subject-specific citation guides
Biology
- CSE quick citation guide (Penn State)
Chemistry
- ACS style guide (sign in with your NetID to view)
Engineering
- IEEE style guide (University of Pittsburgh)
- IEEE guide (IEEE Standards Association)
Government Documents
- Citing government documents (Cornell University)
Journalism
- Associated Press Stylebook 2018 and Briefing on Media Law
- Associated Press Stylebook 2015 and Briefing on Media Law (sign in with your NetID to view)
Law
- Legal writing citation guide (Cornell University)
Medicine
- AMA citation guide (Oakland University)
- AMA Citation Style (Purdue Online Writing Lab)
- AMA Manual of Style: A Guide for Authors and Editors
Sociology
- ASA citation guide (Purdue OWL)
Citation management tools
Did you know there are tools you can use to easily track and format your citations? Find citation management tools.
Get help with citations
FAQs
- How do I use MLA to cite sources?
- How do I cite images?
- How do I cite data and software (code)?
- How do I integrate quotations into my paper?
- What is self-plagiarism?
- How do I paraphrase correctly?
Tutorials and videos
- Understanding citation styles tutorial
- Giving credit tutorial
- How do I give credit to the ideas of others video
- Citations and plagiarism video
Get help from a librarian
Still have questions about citations? Meet with your librarian in your major or discipline to get help with citing sources.