Citation management tools collect, manage, and assist in the creation of accurate citations for your research sources. They are generally quite easy to use, integrate with your web browser--where you do your work--and best of all, are FREE!
Some professors may have a preference as to which citation management tool they use and may suggest one over another. But, it's often simply a case of personal preference as to which interface you prefer.
Below you will find links to RIT Library infoguides that provide abundant information about setting up and using four of these citation management tools.