Gaya APA

Ertel, D., Gordon, M. (2007). The Point of the Deal: How to Negotiate When Yes is not Enough . Boston: Harvard Business School Pres.

Gaya MLA

Ertel, Danny., Gordon, Mark. "The Point of the Deal: How to Negotiate When Yes is not Enough". Boston: Harvard Business School Pres, 2007. Buku Tercetak.