Hanan, Mack. La venta consultiva un método de ventas centrado en la asesoría al cliente Mack Hanan ; translated by Carlos Restrepo S. - Bogotá Editorial Norma c1989. - 303 p. ill. - Desarrollo Gerencial . Translation of: Consultative selling. Includes index. ISBN: 9580408598 LCCN: 92000633 Subjects--Topical Terms: SellingSelling--Key accounts. LC Class. No.: HF5438.25 / .H345 1985 Dewey Class. No.: 658.8/1