"Sonoma County...Map and Visitors Guide" (Sonoma County, CA: Produced by the Santa Rosa Chamber of Commerce), 1979, Sub-Series 1.4, Box: 11, Folder: 3. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6960 Accessed November 15, 2024.