00318nam a2200109Ia 4500082001900000100004200019245005700061260003600118300001600154500000500170700003300175  a333.7bP359.EN  aPearce, David W. and Turner, R. Kerry  aEconomics of natural resources and the environmentb  aNew YorkbHarvester Pressc1990  axiii, 378p.  a  aTurner, R. Kerry ; jt. auth.