Zotero Workshops offered by the Library
Free Library Workshops: https://www.library.cornell.edu/services/instruction/workshops
Or contact a librarian for one-on-one help: citation management software help.
Tips for working with Zotero: http://guides.library.cornell.edu/zotero
ZoteroBib is a free, quick, and easy bibliography and citation maker that saves time and trouble.
Add sources using the ZoteroBib search box. Then, copy and paste the complete bibliography (or footnotes or in-text citations) into your paper in the citation style of your choice.