Gschwandtner, Gerhard Mastering the essentials of sales : what you need to know to close every sale / Gerhard Gschwandtner. - New York : McGraw Hill, c2006 - vi, 214 p. ; 24 cm. - Selling power (Series) . Includes index. ISBN: 0071473866 (alk. paper) LCCN: 2006046625 Subjects--Topical Terms: Selling LC Class. No.: HF5438.25 / G895M 2006