Modern social statistics of Native Americans

their children, 1920: A study based on census statistics relative to the foreign born and the native white of foreign or mixed parentage. Govt. Print. Off

Russell. Population history of Native North Americans. Haines, Michael R; Steckel, Richard Hall (编). A population history of North America. Cambridge University

"African Americans in New York City, 1626–1863" （页面存档备份，存于互联网档案馆）, Department of History, Emory University Ira Rosenwaike (1972). Population History of New

Steven Conn, History's Shadow: Native Americans and Historical Consciousness in the Nineteenth Century, Chicago: University of Chicago Press, 2004, 恩格斯, 弗里德里希

Unemployment Statistics. Bureau of Labor Statistics. [2011-09-07]. （原始内容存档于2014-10-05）.  Local Area Unemployment Statistics. Bureau of Labor Statistics. [2020-07-03]