00285nam a2200109   450000500170000002000180001708200150003508400250005024500520007526000370012730000110016420260506152336.0  a9781266804724  a330bKAR.E  2Colon Classification  aEconomics :bImprove your world /cKarlan, Dean  aNewyork :bMc Graw hill ,c2024.  a1007p.