Cita APA (7a ed.)

Martin, T. (2013). The invisible sale: How to build a digitally powered marketing and sales system to better prospect, qualify, and close leads (1st edition.). Que.

Cita Chicago Style (17a ed.)

Martin, Tom. The Invisible Sale: How to Build a Digitally Powered Marketing and Sales System to Better Prospect, Qualify, and Close Leads. 1st edition. Indianapolis, IN: Que, 2013.

Cita MLA (9a ed.)

Martin, Tom. The Invisible Sale: How to Build a Digitally Powered Marketing and Sales System to Better Prospect, Qualify, and Close Leads. 1st edition. Que, 2013.