Gschwandtner, G. (2007). The psychology of sales success: Learn to think like your customer to close every sale. New York: McGraw-Hill.
Citación estilo ChicagoGschwandtner, Gerhard. The Psychology of Sales Success: Learn to Think Like Your Customer to Close Every Sale. New York: McGraw-Hill, 2007.
Cita MLAGschwandtner, Gerhard. The Psychology of Sales Success: Learn to Think Like Your Customer to Close Every Sale. New York: McGraw-Hill, 2007.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.