When you use outside sources, you will need to create a works cited list that tells your reader all the information they need to find the source themselves if they want to.
See the examples below of commonly used resources. For more information about creating a works cited list, see Purdue OWL MLA Formatting and Style Guide. There you will find examples of how to cite many different types of sources.
See the Cañada College Library citation guide for many more examples of MLA citations.