"San Diego...The Chevron Above All...Means Service" (San Diego, CA: Produced by H.M. Gousha), 1966, Sub-Series 1.4, Box: 8, Folder: 4. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6888 Accessed November 15, 2024.