Title: Conservation of natural resources
First published: 1950
Description: Covers land utilization, forest resources, water supply, mineral resources, wildlife, recreation etc.
Subjects: Economic conditions, Natural resources, Conservation of natural resources, Umweltpolitik, Umschulungswerkstätten für Siedler und Auswanderer, Economic history, Milieueconomie, Recursos Naturais (Reservas), Ecologia, Conditions économiques, Conservation des ressources naturelles, Recursos Naturais (Economia), United states, economic conditions, Ecology
Places: United States