Cita APA (7a ed.)

Zappulla, J. (2016). Critical selling: How top performers accelerate the sales process and close more deals. John Wiley & Sons, Inc..

Cita Chicago Style (17a ed.)

Zappulla, Justin. Critical Selling: How Top Performers Accelerate the Sales Process and Close More Deals. Hoboken, New Jersey: John Wiley & Sons, Inc., 2016.

Cita MLA (8a ed.)

Zappulla, Justin. Critical Selling: How Top Performers Accelerate the Sales Process and Close More Deals. John Wiley & Sons, Inc., 2016.