Ristau, R. A. (1997). Introduction to business (3rd ed.). Cincinnati, OH: South-Western Educational Publ.
शिकागो स्टाइल उद्धरणRistau, Robert A. Introduction to Business. 3rd ed. Cincinnati, OH: South-Western Educational Publ, 1997.
एमएलए उद्धरणRistau, Robert A. Introduction to Business. 3rd ed. Cincinnati, OH: South-Western Educational Publ, 1997.
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