Citace podle APA

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

Styl Chicago

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

Citace podle MLA

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

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