APA (7 वां संस्करण) प्रशस्ति पत्र
Roberts, K. (2011). The origins of business, money, and markets. Columbia Business School Pub..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Roberts, Keith. The Origins of Business, Money, and Markets. New York: Columbia Business School Pub., 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Roberts, Keith. The Origins of Business, Money, and Markets. Columbia Business School Pub., 2011.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.