CConservation reconsideredConservation reconsideredde John V. KrutillaMateriasConservation of natural resourcesEdiciones (1)Conservation reconsidered (1967)Resources for the Future · inglésMás obras de John V. KrutillaThe Columbia River Treaty The Economics Of An International River Basin DevelopmentNatural Environments Studies In Theoretical Applied AnalysisEvaluating benefits of environmental resources