Pederson, Carlton A. Selling : principles and methods / Carlton A. Pederson, Milburn D. Wright and Barton A. Weitz. - 7th ed. - Illinois : Richard D. Irwin, c 1981. - xvii, 565 p. : ill. ; 25 cm. Includes Index. 337 337 ISBN: 0-256-02537-1 Subjects--Topical Terms: Selling. Dewey Class. No.: 658.81 / P341s