Code no.8553: Executive Council of the California Conference of Mason Contractor Associations, Inc. and Southern California District Council of Laborers, Locals 220, 300, 439, 507, 652, 802, 806, 1082, and 585, 1971-1974

Code no.8553: Executive Council of the California Conference of Mason Contractor Associations, Inc. and Southern California District Council of Laborers, Locals 220, 300, 439, 507, 652, 802, 806, 1082, and 585, 1971-1974, Box: 10, Folder: 22. BLS Collection of Collective Bargaining Agreements (Part 3), 6178/003. Kheel Center for Labor-Management Documentation & Archives. https://archives.library.cornell.edu/repositories/4/archival_objects/1632507 Accessed January 16, 2026.