You must use citations when:
When in doubt, cite it!
The only people who really love the complexities of accurate citation format are (some) scholars and (some) librarians. For the rest of us, citation generators can help keep track of sources and produce a correctly format bibliography in the appropriate style.
Try this excellent tool:
NoodleTools is a bibliographic citation and notes management tool. It supports you in creating citations for various source types in the appropriate style, and also helps you keep those citations associated with the notes that you take on the sources you use. It is simple to use and will save you time.
For this course, you will be using the style from MLA (Modern Language Association).
The following handouts will help you prepare and understand how to use the MLA Citation. However, feel free to contact Ms. Pei if you have further questions.