Não informado. (2001). Business and economic history. University of Illinois, Bureau of Economic and Business Research.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Business and Economic History. Urbana, Ill: University of Illinois, Bureau of Economic and Business Research, 2001.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Business and Economic History. University of Illinois, Bureau of Economic and Business Research, 2001.
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