Siegel, Jacob S. "Collection and Analysis of Immigration Data at the Census Bureau." Statement of Senior Statistician before the Select Committee on Population, U.S. House of Representatives, 1978 April 07

Siegel, Jacob S. "Collection and Analysis of Immigration Data at the Census Bureau." Statement of Senior Statistician before the Select Committee on Population, U.S. House of Representatives, 1978 April 07, Box: 199, Folder: 13. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/389806 Accessed September 27, 2026.