Não informado. (2000). University of Wisconsin studies in the social science and history. University of Wisconsin.
Chicago-referens (17:e uppl.)Não informado. University of Wisconsin Studies in the Social Science and History. Madison, Wis: University of Wisconsin, 2000.
MLA-referens (8:e uppl.)Não informado. University of Wisconsin Studies in the Social Science and History. University of Wisconsin, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.