Freithaler, William O. "The Economic Development of the United States-Mexico Border Region." Presented at the annual conference on Problems of Urbanization in Latin America, El Paso, 1968 June 14-15

Freithaler, William O. "The Economic Development of the United States-Mexico Border Region." Presented at the annual conference on Problems of Urbanization in Latin America, El Paso, 1968 June 14-15, Box: 171, Folder: 9. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/389062 Accessed September 27, 2026.