Greenberg, Paul CRM at the speed of light : capturing and keeping customers in internet real time / Paul Greenberg - 2nd ed. - New Delhi : Tata McGraw-Hill Pub., 2003 - 480 p. ; 24 cm. ISBN: 0070532508 Rs.395.00 Subjects--Topical Terms: Customer relations Dewey Class. No.: 658.812 / G 829 (2nd ed.)