00265nam a2200133Ia 4500020000900000082000800009100003200017245002400049250000600073260003000079300000800109500000800117650000600125  aNULL  a519  aGoel, B. S. / Mittal, S. K. 0aOperations Research  a-  aMeerutbPragati Prakashan  a332  a352  a-