Cita APA

Cohen, W. A. (2001). The marketing plan (3rd ed.). John Wiley & Sons.

Citación estilo Chicago

Cohen, William A. The Marketing Plan. 3rd ed. New York: John Wiley & Sons, 2001.

Cita MLA

Cohen, William A. The Marketing Plan. 3rd ed. John Wiley & Sons, 2001.