Não informado. (2000). University of Iowa studies in sociology, economics, politics and history. University of Iowa.
Citace podle Chicago (17th ed.)Não informado. University of Iowa Studies in Sociology, Economics, Politics and History. Iowa City, Iowa: University of Iowa, 2000.
Citace podle MLA (8th ed.)Não informado. University of Iowa Studies in Sociology, Economics, Politics and History. University of Iowa, 2000.
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