University of Pennsylvania Citation Guide / Style Guide
Get the latest University of Pennsylvania Citation Guide (Updated 2022)
Whenever you summarize, quote, paraphrase, or otherwise refer to work by someone else, you are required to cite your source and provide a complete reference for your source in a bibliography, list of references, or works cited.
APA Referencing (7th Edition) Guides
MLA Referencing (8th Edition) Guides
Chicago Manual Of Style (16th Edition) Guides
Sign up for Citationsy to start referencing for free →