Zeithaml, Valarie A. Services marketing integrating customer focus across the firm Valarie A. Zeithaml, Mary JoBitner; Valarie A. Zeithaml, Mary JoBitner. - 2nd ed. - New Delhi Tata McGraw Hill 2000 - xxviii, 620p.: ill.; 28cm. ISBN: 0 - 07 - 043556 - 1. Dewey Class. No.: 658.8 / Z04S