Carlson, Alvar W. "Recent Immigration, 1961-1970: A Factor in the Growth and Distribution of the United States Population." The Journal of Geography 72, no. 9: 8-18., 1973 December

Carlson, Alvar W. "Recent Immigration, 1961-1970: A Factor in the Growth and Distribution of the United States Population." The Journal of Geography 72, no. 9: 8-18., 1973 December, Box: 160, Folder: 9. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/388783 Accessed September 27, 2026.