APA (7e ed.) Bronvermelding

Cohen, W. A. (2013). Drucker on marketing: Lessons from the world's most influential business thinker. McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Cohen, William A. Drucker on Marketing: Lessons from the World's Most Influential Business Thinker. New York: McGraw-Hill, 2013.

MLA (8e ed.) Bronvermelding

Cohen, William A. Drucker on Marketing: Lessons from the World's Most Influential Business Thinker. McGraw-Hill, 2013.