"San Bernardino County" (San Bernardino, CA: Produced by the Automobile Club of Southern California), 1998, Sub-Series 1.4, Box: 8, Folder: 3. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6872 Accessed November 15, 2024.