Princeton University Library has an institutional subscription to Overleaf an online LaTex editor. Learn more at the Overleaf Guide.
The Elements of Style, by William Strunk, Jr.
Bibliographic management tools work directly with library databases and the web, allowing you to collect and organize your citations and pdfs. They also work with word processing software like Word to allow you to insert properly formatted citations into your paper and automatically generate a properly formatted bibliography. Some popular free citation managers supported by Princeton are: