"Street Map of San Gabriel Valley Area" (San Gabriel, CA: Produced by the Automobile Club of Southern California and California State Automobile Association), 1974, Sub-Series 1.4, Box: 9, Folder: 3. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6910 Accessed November 15, 2024.