Churchman, C. West. Introduction to operations research / C. West Churchman, Russel L. Ackoff and E. Leonard Arnoff. Modern Asia ed. - New York : John Wiley & Sons, c 1957. - x, 645 p. : ills. ; 22 cm. Includes index 320 320 Subjects--Topical Terms: Operations research Dewey Class. No.: 658.57 / C473i