"Come to Escondido California" (Escondido, CA: Produced by the San Diego Gas and Electric Company and Churchill and Cassou, Ltd.), undated, Sub-Series 2.1, Box: 15, Folder: 4. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/7047 Accessed November 15, 2024.