"Napa-Sonoma Wine Company Recreation Map" (Napa-Sonoma, CA: Produced by H.M. Gousha Simon & Schuster Inc.), 1993, Sub-Series 1.3, Box: 6, Folder: 1. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6802 Accessed November 15, 2024.