It can be difficult keeping track of dozens of references. Citation management tools help by saving all your references in a list that you can search, organize, and reformat in various citation styles. Try any of these free citation management tools.
James C. Kirkpatrick Library offers free institutional storage on Zotero for all UCM students, faculty, and staff. To access this, simply go to zotero.org and sign up/in using your UCM email address. It should automatically give you unlimited storage. Also, if you previously registered with a different email address, you can add your institutional address to your current account when you're logged in at https://www.zotero.org/settings/account.
Other free citation management tools are listed below. Please note that they may have storage limitations.