American Indian Resources: Reference Sources (Online)
This is an introductory guide to resources for Native American Studies. Some, but not all, of these are available through the Edmon Low Library, Oklahoma State University, Stillwater.
LibGuides at Other Universities
Ponder, Erik. Native American Studies Research Guide, Michigan State University
Guide to Resources in American Indian Studies, University of Illinois Libraries.
Young, Christal. "Free Online Primary Sources" Native American Studies University of Southern California
See especially the page on Free Onlne Primary Sources.