"Southern California's Sunshine Empire: Ride The Roads to Romance and Golden Coast" (Produced by Roads to Romance Assn., Inc.), 1946, Sub-Series 2.5, Box: 24, Folder: 5. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/15353 Accessed January 10, 2026.