EndNote and Zotero are citation managers. Citation managers help you manage bibliographic citations.
Citation managers collect citation information from online sources, e.g. databases. Citation managers organize and format citations in-text and in your reference list.
EndNote is free to members of Indiana University / IUPUI students, faculty and staff
Zotero is open source -- free to everyone
Download Zotero program and website Extension on the website. Note: you will need to download updates to the program.
Set up online Zotero.org account. This allows you to access your citation manager across devices and share your citations with others