"Mount Wilson Hotel 6,000 Feet High" (Pasadena, CA; Produced by A. C. Childs, Managing Director Mount Wilson Hotel Co.), undated, Sub-Series 2.3, Box: 21, Folder: 2. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/10364 Accessed November 15, 2024.