Specialized reference sources--like dictionaries and subject encyclopedias, provide overviews of topics and descriptions of concepts and ideas. They can also provide definitions, statistics, and other details. You can use this type of source to help narrow your research topic, find data to support your thesis, and identify keywords and main ideas to use as search terms.
This page includes some of the most relevant resources for this topic. But be sure to explore the online reference resources listed here or browse the shelves in the Reference Collection to find more!
Additional Resources in Tufts Libraries Collections:
Didn't find what you need in the specialized resources above? Then try simultaneously searching across multiple online reference works in the resources listed here.