"Come to Chevron Island in Orange County Western Section" (Orange County, CA: Produced by H.M. Gousha), 1969, Sub-Series 1.3, Box: 6, Folder: 2. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6811 Accessed November 15, 2024.