There are two elements to every citation:
Note: These are just two examples. Always check a current citation guide for the style your instructor requires for proper formatting.
1. In-Text citation (APA) or Footnote/Endnote (Chicago)
This is where you identify, in summary, the source of your quote or the material you are using in your paper.
Chicago note style:
2. Works Cited Page or Footnote/Endnote (Chicago)
This is where you list, in alphabetical order, the complete citations for all the sources you noted in your in-text citations, for styles like APA.
Or, for the Chicago notes style, this is how you format the full citation in the note.
Ask your instructor which style they want you to use. If they have no preference, you can use the one intended for your discipline.