Skip to Main Content

BGGN 2xx - Biology Resources for Graduate Students: Manage & Cite Sources

This guide is designed to help you start your research in biology and related biological sciences.

No-Cost Citation Tools

These are the three most popular no-cost tools for managing citations. They all offer options for grabbing references from our databases, working with word processors to format citations and bibliographies, and some level of sharing. At all of these you will need to create an account. 

  • Mendeley: online and desktop applications are both free. Limited free PDF storage for online. Best for: excellent PDF annotation tool and attached note-taking. [Mendeley guide]
  • Zotero: online and desktop applications are both free. Best for: grabbing screen-captures of websites you want to cite and refer back to the way they looked at the time.  [Zotero guide]
  • EndNote Web: online only, free for UCSD users, so must use VPN or campus network. Note: the more robust desktop application is not free. 

For a detailed comparison of these, see our complete guide on Citation Software

Mendeley vs Zotero
  Mendeley Zotero
Produced by Elsevier Non-profit
Free storage 2 GB 300 MB
Word processors Word, LibreOffice Word, LibreOffice Google Docs
Cool features "Newly added" smart folder

Identification of duplicates,

better at grabbing Web content