Citation Machine is a free website that allows you to build individual references that you can cut & paste where you need them. The templates are informative. This tool includes an ISBN lookup function. Good for the beginner.
RefWorks is available to CU students, faculty, and staff. You must use a campus computer network to create an account, then log-in to use this powerful research management tool.
Automatic MLA References
Most library databases have reference capabilities. Microsoft Word has rudimentary reference capabilities.
The Little, Brown Handbook by 