Schonberger, Richard. Operations management improving customer service Richard J. Schonberger, Edward M. Knod, Jr. - 4th ed., International student ed. - Homewood, IL Irwin c1991. - xvii, 926 p. ill. Includes bibliographical references and index. ISBN: 0256098816 (International ed. : pbk.) 0256082405 LCCN: 90044669 Subjects--Topical Terms: Production management LC Class. No.: TS155 / .S3244 1991 Dewey Class. No.: 658.5