Credo is an academic alternative to Wikipedia. It includes many entries on the Civil Rights Movement.
Go to the library at www.southwestern.edu/library-and-it/ to search the catalog [WorldCat@SU] and databases. Also find the library in the Academic Life section of the SU app.
Search results will include books, media, articles and more. To find just books, use the Search Tools to limit Format to Books. The Description in a book's record includes contents and subject headings. Click on a Subjects link to find other books on the topic. You can also Browse the Shelf for related titles.