Gibson, C., & Lennon, E. (1999). Historical census statistics on the foreign-born population of the United States: 1850 to 1990. U.S. Bureau of the Census.
Chicago Style (17th ed.) CitationGibson, Campbell, and Emily Lennon. Historical Census Statistics on the Foreign-born Population of the United States: 1850 to 1990. Washington, DC: U.S. Bureau of the Census, 1999.
MLA (9th ed.) CitationGibson, Campbell, and Emily Lennon. Historical Census Statistics on the Foreign-born Population of the United States: 1850 to 1990. U.S. Bureau of the Census, 1999.
Warning: These citations may not always be 100% accurate.