"Estimates of the Unauthorized Immigrant Population Residing in the United States, By Country of Origin and State of Residence: October 1992"/ Robert Warren (Director, Statistics Division), Immigration and Naturalization Services (INS), 1994 April 29

"Estimates of the Unauthorized Immigrant Population Residing in the United States, By Country of Origin and State of Residence: October 1992"/ Robert Warren (Director, Statistics Division), Immigration and Naturalization Services (INS), 1994 April 29, Box: 20, Folder: 6. John Chapman Papers, 885254831. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/476512 Accessed September 27, 2026.