Não informado. (2001). Business and economic history. University of Illinois, Bureau of Economic and Business Research.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Business and Economic History. Urbana, Ill: University of Illinois, Bureau of Economic and Business Research, 2001.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Business and Economic History. University of Illinois, Bureau of Economic and Business Research, 2001.
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