Ades, Leslie J. Increasing your sales potential : a practical guide to successful selling / Leslie J. Ades. - New York : Harper & Row, c1981. - x, 262 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 0060401699 LCCN: 81000688 Subjects--Topical Terms: Selling. LC Class. No.: HF5438.25 / .A33 Dewey Class. No.: 658.8/5