Heizer, Jay H. Operations management / Jay Heizer, Barry Render. - 9th ed., flexible version - Upper Saddle River, N.J. : Pearson Prentice Hall, c2009. - xxxviii, 676 p. : ill. ; 27 cm. ISBN: 9780136025672 Subjects--Topical Terms: Production management. Dewey Class. No.: 658.5 HEI