Any information that came from a source outside of your own head needs to be cited.
Your citations are like your paper's family tree. They show the difference between the ideas of others that you are responding to, and your own originality. Citation helps to clearly document the research you have done on your topic, and is very useful as you evaluate evidence and respond to the work of others.
If you have any questions about citations, you can use the Ask a Librarian Chat for help.
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