Sugrue, Thomas J.
The Origins of the urban crisis : race and inequality in postwar Detroit
Prenciton University Press, 2005
 Buku Teks
Race relations and the race problem: a definition and an analysis
edited by Edgar T. Thompson, Robert E. Park
Duke University Press, 1939
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American democracy institutions, politics, and policies
by William J. Keefe ... [and others]
The Dorsey Press, 1983
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Brown, Ina Corinne
Race Relations in A Democracy/Ina Corinne Brown
Harper, [1949]
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Corry, J. A.
Democratic government and politics / J.A. Corry
University of Toronto Press, 1960
 Buku Teks