U.S. Bureau of the Census. "Population Characteristics of Selected Ethnic Groups in the Five Southwestern States." 1960 Census of Population, Supplementary Report PC(S1)-55, 1968 July

U.S. Bureau of the Census. "Population Characteristics of Selected Ethnic Groups in the Five Southwestern States." 1960 Census of Population, Supplementary Report PC(S1)-55, 1968 July, Box: 204, Folder: 14. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/389942 Accessed September 27, 2026.