AAlternative pollution control strategiesAlternative pollution control strategiesde Jack L. KnetschMateriasEnvironmental policyEnvironmental protectionPollutionEdiciones (1)Alternative pollution control strategies (1973)University of Newcastle, Board of Environmental Studies · inglésMás obras de Jack L. KnetschEEconomics of Outdoor RecreationEconomics of Outdoor Recreation
EEconomics of including recreation as a purpose of water resoEconomics of including recreation as a purpose of water resources projects
