"Corona-Norco Area" (Corona, CA: Produced by Automobile Club of Southern California), 1992, Sub-Series 1.1, Box: 2, Folder: 2. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6687 Accessed November 15, 2024.