Gaya APA

Sheldon, G., Talucci, G. (2007). Sales & Pitch Letters for Busy People: Time-saving, money-making, ready-to-use letters for any prospect . New Jersey: Career Press.

Gaya MLA

Sheldon, George., Talucci, Gina. "Sales & Pitch Letters for Busy People: Time-saving, money-making, ready-to-use letters for any prospect". New Jersey: Career Press, 2007. Teks.