00330n   a2200133 a 4500000002100000001000700021005001700028082001800045100001600063245005800079250001000137260004100147300000800188B B                 00156920220201162652.0  a338.5bM6 ECO  aAhuja, H.L.  aAnalysis of Economic Systems and Microeconomic Theory  aThird  aNew DelhibSultan Chand & Sonsc1986  a459