00300nam a2200121 a 450000500170000002000150001708200180003210000200005024500410007025000120011126000300012330000250015320251203092245.0  a0029467500  a001.424,btah  aTaha, Hamdy, A.  aOperations research: an introduction  a4th ed.  aNew York: Macmillanc1987  axviii, 876p.c23 cm.