APA Citatie

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

Chicago Style citaat

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

MLA citatie

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