"Lost Mines Fabulous Uranium and Buried Treasures of the Southwest with Map Locations" (Produced by R.W. Mc Allister), undated, Sub-Series 1.5, Box: 22, Folder: 1. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/15203 Accessed January 09, 2026.