"San Bernardino Riverside Street and Vicinity Maps" (San Bernardino, CA: produced by H. M. Gousha Company), 1970, Sub-Series 1.4, Box: 23, Folder: 1. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/15247 Accessed January 09, 2026.