Reichheld, Frederick F. Loyalty rules! how today's leaders build lasting relationships / [Book] : Frederick F. Reichheld. - Boston : Harvard Business School Press, c2001. - xiii, 213 p. : ill. ; 24 cm. Include index. All. ISBN: 1591393248 Subjects--Topical Terms: Customer loyalty.Customer relations.Employee loyalty.Leadership. Dewey Class. No.: 658.812