Cita APA

Booher, D. (2007). Winning sales letters.

Chicago Edition Citation

Booher, Dianna. Winning Sales Letters. Prentice-Hall of India Pvt. Ltd., New Delhi, 2007.

Cita MLA

Booher, Dianna. Winning Sales Letters. 2007.

Atenció: Aquestes cites poden no estar 100% correctes.