6Jack C. Plano, Milton Greenbery (1979), The American Political Dictionary, Holt, Rinehart and Winston, p. 377.
7Charles Scribner's Sons (1976), Dictionary of American History, Ⅶ, p. 23.
8James, Leiby (1978), A History of Social Welfare and Social Work in the United States, Columbia University Press, p. 324.
9Modibo Coulibsly, Rodney D. Green and David M. James (1995), Segregation in Federally Subsidized Low-Income Housing in the United States, Greenwood Publishing Group, Inc.
10Charles Abrams (1939). Revolution in land, New York, p. 74.
