APA (7e ed.) Bronvermelding
Roberts, K. (2011). The origins of business, money, and markets. Columbia Business School Pub..
Chicago (17e ed.) Bronvermelding
Roberts, Keith. The Origins of Business, Money, and Markets. New York: Columbia Business School Pub., 2011.
MLA (9e ed.) Bronvermelding
Roberts, Keith. The Origins of Business, Money, and Markets. Columbia Business School Pub., 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.