There are many ways to automatically format citations. Tisch Librarians support and recommend some options more than others, based on our experience. But the best choice is the one that works for you, helps you organize your research workflow, and feels right.
Remember that these are shortcuts to save you time, but they are all imperfect, and draw from imperfect databases. They may get you 90% of the way to a great bibliography, but you are ultimately responsible for what goes into your paper.