Crissy, J. E. Selling : the personal force in marketing / / J. E. Crissy, William H. Cunningham and Isabella C.M. Cunningham. - New York : Wiley, c1988. - xvii, 491 p. : 25 cm. Includes bibliographical references and indexes. ISBN: 0471864005 Subjects--Topical Terms: Selling. Dewey Class. No.: 658.81 CRI