HIST 1000: Nature in History (Olfelt)

Citing Sources

Chicago Style Guides

When to Cite Sources

You must cite a source in all of the following situations:

  • Using a direct quote from another author
  • Paraphrasing the words of another author
  • Including another author's ideas, even if you disagree with them
  • Whenever you're not sure whether or not you need to cite a source