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Starting Your Research: Cite Your Sources

A Beginning Scholar's Guide to Research Success for new students at the University of Notre Dame

Common Citation Styles

APA Style

Used for: Social Sciences, Sciences

Print guide: Available at the Hesburgh Library Reference Desk

Online guides:

Chicago Manual of Style

Used for: Arts, History, Sciences

Print guide: Available at the Hesburgh Library Ask Us Desk

Electronic accessChicago Manual of Style

Online quick guides:

Modern Language Association

Used for: Literature, Liberal Arts, Humanities

Print guide: 8th ed., available at the Hesburgh Library Ask Us Desk

Online guides:


Used for: Humanities, Social Sciences, Natural Sciences

Print guide: Available at the Hesburgh Library Ask Us Desk

Online guideTurabian Quick Guide


Citing Theological Resources

Library guide to Citing Theological Sources [St. Thomas University] :

  • Vatican II Documents
  • Papal Encyclical Letters
  • Citing the Summa Theologica/Thomas Aquinas
  • Citing Bible Reference Sources
  • How to Cite the Bible
  • Anniversary documents commenting on and celebrating previous encyclical letters
  • The Catechicsm and other first use models
  • Canon Law
  • Papal Decrees
  • Apostolic Letters
  • Apostolic Exhortations

Citation Managers

Citation managers help you keep track of your sources and generate in-text citations and works cited pages.

  • RefWorks: The subscription is paid for by Notre Dame, but you can have access to your account past graduation, as long as the subscription is current. 

  • Zotero: A free tool that works as an extension to Chrome and Firefox. It supports Mac, Windows, and Linux.

  • Mendeley:  A free tool often used in the sciences, it supports Word, LibreOffice, and LaTeX.

Check out Research Citation Managers guide to learn more about these three options, or ask a librarian for more information.