Campbell, A., & Schuman, H. (1969). Racial attitudes in fifteen American cities. Survey Research Center, Institute for Social Research, University of Michigan.
Citace podle Chicago (17th ed.)Campbell, Angus, a Howard Schuman. Racial Attitudes in Fifteen American Cities. Ann Arbor, Mich.: Survey Research Center, Institute for Social Research, University of Michigan, 1969.
Citace podle MLA (8th ed.)Campbell, Angus, a Howard Schuman. Racial Attitudes in Fifteen American Cities. Survey Research Center, Institute for Social Research, University of Michigan, 1969.
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