00305nam a2200133Ia 4500008004100000100001400041245002300055250001200078260003300090300000800123650001600131942000700147999001700154190216s9999||||xx |||||||||||||| ||und||  aKalavathy 0aOperation Research  a2nd Ed.  bVikas Publishing Housec2002  a536  aMathematics  cBK  c31699d31699