Here's the key:
* Each source you mention in your paper (direct quotes, paraphrases, ideas) MUST be included in the reference list.
* The reference list ONLY includes sources you've actually cited in your paper.
Think of it this way:
* The references are like a map to your sources.
* They allow readers to find the information you used to support your claims.
Example:
If you cite three books, three journal articles, and one website in your paper, your reference list will have seven entries.
Let me know if you have more questions!