Cram, Tony. Customers that count : how to build living relationships with your most valuable customers / Tony Cram. - London : Financial Times Prentice Hall, 2001. - viii, 261 p. : ill. ; 24 cm. ISBN: 0273654314 Subjects--Topical Terms: Relationship marketing.Customer relations.Customer loyalty. Dewey Class. No.: 658.812 CRA