Não informado. (2001). Business and economic history. University of Illinois, Bureau of Economic and Business Research.
Chicago-referens (17:e uppl.)Não informado. Business and Economic History. Urbana, Ill: University of Illinois, Bureau of Economic and Business Research, 2001.
MLA-referens (8:e uppl.)Não informado. Business and Economic History. University of Illinois, Bureau of Economic and Business Research, 2001.
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