"Maps of San Joaquin County and the 1000 Miles of Delta Waterways" (San Joaquin County, CA: Produced by the San Joaquin County Chamber of Commerce), undated, Sub-Series 1.4, Box: 9, Folder: 4. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6918 Accessed November 15, 2024.