Chatsworth Community Advisory Council, Councilman Hal Berson: correspondence; membership list; notices, 1979, id18831, Box: 6, Folder: 1. Santa Susana Mountain Park Association Collection, URB-SSMPA. Special Collections & Archives. https://findingaids.csun.edu/repositories/2/archival_objects/74871 Accessed June 06, 2026.