Gaya APA

Altschuler, M. (2016). Hacking sales : the ultimate playbook and tool guide to building a high velocity sales machine . New Jersey: John Wiley & Sons, Inc..

Gaya MLA

Altschuler, Max. "Hacking sales : the ultimate playbook and tool guide to building a high velocity sales machine". New Jersey: John Wiley & Sons, Inc., 2016. TEXT.