00353nam a2200145Ia 4500008004100000020001800041041000800059082001300067100002300080245002500103250000600128260003800134300001100172650002400183210716s2012    xx            000 0 und d  a9788131516256  aeng  a003 PRAM  aPrasad, M V Durga.  aOperations research.  a1  aNew DelhibCengage Learningc2012  axi,439  aOperations Research