"Parker/Blythe Desert Access Guide" (Blythe, CA: Produced by the U.S. Department of the Interior Bureau of Land Management), undated, Sub-Series 1.1, Box: 7, Folder: 1. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6828 Accessed November 15, 2024.