Fenvessy, Stanley J Keep your customers and keep them happy / Stanley J. Fenvessy - Homewood, Ill. : Dow Jones-Irwin, 1976 - x, 174 p. : ill. ; 24 cm. Includes index. ISBN: 0870941208 LCCN: 75-043168 Subjects--Topical Terms: Customer relationsCustomer services