Global Tomorrow Coalition, The Environmental Defense Fund, S.O.S. Wildlife Campaign Brochure, Mailer, ca.1982, id107175, Box: 15, Folder: 25. Zero Population Growth of Los Angeles, Inc. Collection, URB-ZPG. Special Collections & Archives. https://findingaids.csun.edu/repositories/2/archival_objects/73415 Accessed June 07, 2026.