"A Picture Story of the Rim of the World" (San Bernardino, CA: Produced by Chamber of Commerce), undated, 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/15331 Accessed January 09, 2026.