"California Points of Interest and Touring Map" (Produced by H. M. Gousha Company), 1961, Sub-Series 1.5, Box: 22, Folder: 5. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/15236 Accessed January 10, 2026.