Canfield, Bertrand R. Salesmanship: practice and problems/ Bertrand R. Canfield - 3rd ed. - New York: McGraw-Hill, 1958 - xi, 573 p.; 22 cm. Includes index Bibliography: p. 564-566 ISBN: $ 6.75 Subjects--Topical Terms: SellingSales promotion Dewey Class. No.: 658.85