Cuber, John F
Problems of American society: values in conflict
Henry Holt And Company, 1951
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Farley, John E.
American social problems : an institutional analysis
Prentice-Hall, 1987
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Ferris, Brian
World problems
Hulton Educational Publications, 1973
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Arrow, Kenneth J.
Social choice and individual values
John Wiley & Sons, 1951
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Arrow, Kenneth J.
Social choice and individual values
Yale University Press, 1963
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