00318n   a2200133 a 4500000002100000001000700021005001700028082001500045100001600060245005900076250000800135260002900143300001200172B B                 00229220220201163251.0  a338.5bM86  aAhuja, H.L.  aAnalaysis of economic systems and microeconomic theory  a3rd  aNew DelhibS.Chnadc1986  axii,459