There are programs or online tools to help you save and organize citations, and format your bibliography or works cited list.
"Citation management software" is a broad term for programs that will save citations in a personal database, and automatically format them according to the users' preferred style.
Zotero is one of the programs available to U-M students, but there are other citation management software programs or apps available. See the Manage Citations with Zotero, Mendeley, and EndNote guide for details.
Be aware that citation management tools are very handy, but can sometimes display citation data incorrectly. Check your citations against the proper style guidelines, just to be sure the formatting is correct.
Many library databases have a "cite" function that will automatically format a specific citation, and that will allow you to copy that formatted citation into your paper. There are a few free online tools to automatically generate a citation for books, journals, newspapers and more in APA, MLA, or Chicago style. Again, check your citations against the proper style guidelines to correct any errors.