Senior, Clarence. "Bibliography on Puerto Ricans in the United States." Commonwealth of Puerto Rico, 1959 April

Senior, Clarence. "Bibliography on Puerto Ricans in the United States." Commonwealth of Puerto Rico, 1959 April, Box: 198, Folder: 15. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/389792 Accessed September 27, 2026.