Autobiography of a People: Three Centuries of African American History Told by Those Who Lived It by 
Milestone Documents in African American History: Exploring the Essential Primary Sources by Use these keywords to find primary sources in the catalog
The library catalog uses the subject "Sources" for a book contains primary sources. And the subject "Personal Narratives" for memoirs and oral histories.
Please see the example:
To search the catalog for subjects go to the "Advanced Search". See screenshot below:
