Kurtz, Richard A. "Cultural Deprivation, Lower Class and Mental Retardation: Certain Terminological and Conceptual Confusions." Reprinted from Soc. Sci. & Med. 3, circa 1968 April

Kurtz, Richard A. "Cultural Deprivation, Lower Class and Mental Retardation: Certain Terminological and Conceptual Confusions." Reprinted from Soc. Sci. & Med. 3, circa 1968 April, Box: 179, Folder: 7. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/389277 Accessed September 26, 2026.