000 00307nam a2200145Ia 4500
100 _aTaha/H.A
942 _cBK
654 _aOperational Recerch
245 _aOperational Research
260 _bMac Millian
_aNew York
_c1987
082 _a658.4
_bTah
300 _a876
546 _aENGLISH
999 _c20866
_d20866