- In depth guide to finding primary sources at OU.
- In depth guide to finding secondary sources at OU.
- In depth guide to researching the environment at OU. (From the Claire Curry, Science Librarian)
- Government Documents Department
- Learning to do Historical Research: A Primer for Environmental Historians and Others (from Wisconsin)
Secondary sources are materials written by historians using primary sources (such as government reports, newspaper articles, memoirs, etc.) Examples of secondary sources include:
See the boxes below for resources to help you find different types of secondary sources.
TIP: Because historians cite their primary sources, look at the bibliographies in their books and articles to locate sources for your own paper!
Do NOT use encyclopedias as your only source. DO use encyclopedias as a starting point for background information and sources for further reading.