Southwestern Cooperative Educational Laboratory. "The SWCEL Program and Your School: An Administrator's Manual," written by Mavis D. Martin and Stanley Caplan, 1968

Southwestern Cooperative Educational Laboratory. "The SWCEL Program and Your School: An Administrator's Manual," written by Mavis D. Martin and Stanley Caplan, 1968, Box: 201, Folder: 1. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/389839 Accessed September 27, 2026.