00414nam a2200145Ia 4500001001100000005001700011008004300028020001500071090001400086245007500100260004200175300001100217650002300228999001700251000002150220251012174806.0        s1981    uk                      c  a086531196X00a333.7 ECO00aEconomics of environmental and natural resources policycJ. A. Butlin   aBoulder, Colo.bWestview Pressc1981   a206 p.00aNatural resources.  c10880d10880