Meyers, Frederick, and Eastin Nelson. "Labor Requirements and Labor Resources in the Lower Rio Grande Valley of Texas." Inter-American Education Occasional Papers VI, 1950 December

Meyers, Frederick, and Eastin Nelson. "Labor Requirements and Labor Resources in the Lower Rio Grande Valley of Texas." Inter-American Education Occasional Papers VI, 1950 December, Box: 183, Folder: 16. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/389394 Accessed September 27, 2026.