"Riverside & Vicinity...Corona & Norco Also Covering March Air Force Base" (Corona, CA: Produced by King of the Road Map Service, Inc.), 1998, 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/6686 Accessed November 15, 2024.