Zotero (pronounced "zoh-TAIR-oh") is a citation manage, a program that collects, manages, and cites research sources. It's easy to use, lives in your web browser where you do your work, and best of all it's free. Zotero allows you to attach PDFs, notes and images to your citations, organize them into collections for different projects, and create bibliographies.

Once you install Zotero, your browser should show a book icon when viewing an item in the library catalog. Click the book icon to add the item to your Zotero library. 

If viewing a list of multiple records, the icon will be a folder, rather than a single book.