Weitz, Barton A. Selling : building partnerships / Barton A. Weitz, Stephen B. Castleberry and John F. Tanner. - Homewood, IL. : Irwin, 1992. - xxiii, 548 p. : col. ill. ; 26 cm. Includes indexes. Includes bibliographical references. ISBN: 0256103542 (hbk. ) Subjects--Topical Terms: Selling.