APA (7th ed.) Citation

Cohen, W. A. (1995). The marketing plan. John Wiley & sons.

Chicago Style (17th ed.) Citation

Cohen, William A. The Marketing Plan. Chichester [u.a.]: John Wiley & sons, 1995.

MLA (9th ed.) Citation

Cohen, William A. The Marketing Plan. John Wiley & sons, 1995.