Cram, Tony. The power of relationship marketing : how to keep customers for life / Keeping customers for life Relationship marketing Tony Cram. - London : Financial Times/Pitman, 1994. - ix, 254 p. : ill. ; 24 cm. Subtitle on jacket: Keeping customers for life. ISBN: 0273609076 Subjects--Topical Terms: Advertisers--AttitudesConsumer satisfactionCustomer relationsCustomer servicesMarketing--Management