Gaya APA

Peoples, D, A. (1993). Selling to the top : David Peoples' executive selling skills / David A. Peoples . New York: John Wiley n Sons.

Gaya MLA

Peoples, David, A.. "Selling to the top : David Peoples' executive selling skills / David A. Peoples". New York: John Wiley n Sons, 1993. Textbook.