"San Francisco's Mountain Camp Mather" (San Francisco, CA; Produced by The San Francisco Recreation Commission), undated, Sub-Series 2.4, Box: 21, Folder: 2. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/10367 Accessed November 15, 2024.