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