"Hi-Desert Communities Street Maps" (Joshua Tree, CA: Produced by Pomona First Federal Savings and Loan Association), 1974, Sub-Series 1.2, Box: 3, Folder: 4. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6721 Accessed November 15, 2024.