Buzzotta, V. Ralph, 1931- Effective selling through psychology : dimensional sales and sales management strategies / V.R. Buzzotta, R.E. Lefton, Manuel Sherberg. - Cambridge, MA : Ballinger Pub. Co., c1981 - vi, 387 p. : ill. ; 24 cm. Includes index. Subjects--Topical Terms: Selling--Psychological aspects.Sales management. Dewey Class. No.: 658.81 / BUE 1981