Harper, William Massie Operational research / W. M. Harper - London : Macdonald and Evans, 1982. - xv, 301 p. : ill. ; 19 cm. - The M & E handbook series . Includes bibliographical ref. and index ISBN: 0712115439 Subjects--Topical Terms: Operations research. LC Class. No.: HD20.5 / .H36 1982