Citing your sources and avoiding plagiarism are key components of academic work at any institution of higher learning. Below you will find a link to the American Psychological Association (APA) style guide, which will give you examples of commonly cited source types.
You must also avoid plagiarism (using someone's work without attribution or permission), whether accidental or intentional. Below you will find a Google slides presentation about how to avoid accidental plagiarism.
Librarians are available to help you figure out how to cite sources. However, keep in mind that your professor is the ultimate arbiter of proper citation, as they will be grading your work. If you have questions about how they would like you to cite things, ask them. They want you to succeed!