"San Bernardino County" (San Bernardino, CA: Produced by Not Available [Quantity 2]), undated, Sub-Series 2.4, Box: 25, Folder: 1. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/15387 Accessed January 09, 2026.