"Map and Directory Information San Bernardino and Vicinity California Including Riverside, Redlands, Rialto, Colton, Fontana, Arlington" (San Bernardino, CA: Produced by Map Corporation of America), undated, Sub-Series 1.4, Box: 23, Folder: 4. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/15322 Accessed January 10, 2026.