APA (7e ed.) Bronvermelding

Cohen, W. A. (2001). How to make it big as a consultant (3rd ed.). AMACOM.

Chicago (17e ed.) Bronvermelding

Cohen, William A. How to Make It Big as a Consultant. 3rd ed. New York: AMACOM, 2001.

MLA (9e ed.) Bronvermelding

Cohen, William A. How to Make It Big as a Consultant. 3rd ed. AMACOM, 2001.