Clement, Norris C. "United States-Mexico Border Economic Issues: A Conceptural Framework." N.p. [typescript], undated

Clement, Norris C. "United States-Mexico Border Economic Issues: A Conceptural Framework." N.p. [typescript], undated, Box: 163, Folder: 3. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/388841 Accessed September 27, 2026.