Enrick, Norbert Lloyd, 1920- Management operations research / NORBERT LIOYD ENRICK. - New York, Holt, Rinehart and Winston [1964, c1965] - x, 320 p. illus. 22 cm. - Modern management series . LCCN: 65012740 Nat. Bib. No.: GB65-12011 Subjects--Topical Terms: Operations research. LC Class. No.: HD20 / .E5 Dewey Class. No.: 658.018 / N M