"Map of San Bernardino County" (San Bernardino, CA: Produced San Bernardino County Economic Development Commission), 1968, Sub-Series 1.4, Box: 23, Folder: 2. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/15287 Accessed January 10, 2026.