Weitz, Barton A. Selling : building partnerships / Barton A. Weitz, Stephen B. Castleberry, John F. Tanner, Jr. - 7th ed. - Boston : McGraw-Hill Irwin, c2009. - xxiii, 482p. : ill. ; 26 cm. Includes bibliographical references and indexes. eng. ISBN: 9780073381084 TZS 10,000/= Subjects--Topical Terms: Selling.knowledge and skill Dewey Class. No.: 658.85 WEI