"Visit the Inland Empire: The Scenic Mountain & Desert Playgrounds of Southern California" (San Bernardino, CA: Produced by Chamber of Commerce [Quantity 2]), 1984, Sub-Series 2.4, Box: 24, Folder: 3. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/15340 Accessed January 10, 2026.