Barrera, Rick. Overpromise and overdeliver : the secrets of unshakeable customer loyalty / Rick Barrera. - New York, N.Y., U.S.A. : Penguin, 2005. - x, 226 p. ; ISBN: 014306214X Rs. 395.00 Subjects--Topical Terms: Product management.Brand loyalty. Dewey Class. No.: 658.8343 / B2O8