U.S. Bureau of the Census. "Puerto Ricans in the United States" (Vol. II, Part 1D), and Persons of Spanish Surname (Vol. II, Part 1E). Subject Reports, 1962 January

U.S. Bureau of the Census. "Puerto Ricans in the United States" (Vol. II, Part 1D), and Persons of Spanish Surname (Vol. II, Part 1E). Subject Reports, 1962 January, Box: 204, 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/389943 Accessed September 27, 2026.