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Reference Resources by Subject

This guide is a cumulation of references available at CMU. Available by type of resource or subject, you can find tools to help in your research here.

The Tomlinson Library has a variety of reference sources available to help in a variety of subjects. Utilize this subject guide to help you find reference resources needed to conduct quality and diverse research. Please see a list and description of different types of reference resources below. 

Need help? Please don't hesitate to Chat with a Librarian or call us and 970.248.1860.



Atlases are a collections of maps that can encompass the world or particular regions of the world.



The Dictionary is a book or electronic resource that lists the words of a language (typically in alphabetical order) and gives their meaning, or gives the equivalent words in a different language, often also providing information about pronunciation, origin, and usage.



Directories provide names, addresses, affiliations, etc. of people, organizations, or institutions. They can be used to verify addresses, name spellings, and provide contact information. As in other reference sources, directories may be general or focused on a particular subject.



An encyclopedia is a book or a collection of  books providing information on a set or variety of subjects.