00256nam a2200097Ia 4500020001800000082001900018100004200037245002400079260002900103650002600132  a9788180549090  a658.4034 SWA/O  aSwarup, Kanti : P K Gupta : Man Mohan 0aOperations Research  bS ChandaNew Delhic1995  aOperations Researches