Cita APA

 Gschwandtner, G. (2007).  The psychology of sales success: Learn to think like your customer to close every sale.  McGraw-Hill.

Chicago Style Citation

 Gschwandtner, Gerhard.  The Psychology of Sales Success: Learn to Think Like Your Customer to Close Every Sale.  McGraw-Hill, 2007.

Cita MLA

 Gschwandtner, Gerhard.  The Psychology of Sales Success: Learn to Think Like Your Customer to Close Every Sale.  McGraw-Hill, 2007.