Environmental Education and National Parks: The World Conservation Strategy, Values and Naturalist Interpretative Activities Author Henning D.H. Journal/Series Environmental Education and Information | Vol. 9, no 1; 1 - 14; 14 p. Date 1990 Source IUCN (ID: ANA-044083) Publisher | Place of publication University of Salford Environmental Resources Unit | Salford, UK Language English Field of application International Subject Wild species & ecosystems