Landscape planning : papers presented at the International Symposium on the Relationship Between Engineering and Biology in Improving Cultural Landscape, held in Brno, Czechoslovakia, 9-12 June 1970 1971
Landscape planning : papers presented at the Latin American Conference on the Conservation of Renewable Natural Resources, held at Bariloche, Argentina, 27 March - 2 April 1968 1968
IUCN's twelfth Technical Meeting, Banff, Alberta, Canada, 12 to 15 September 1972 : papers and proceedings 1973 Elliott, Hugh F. I. |
A. Conservation in land-use planning : soil and water resources especially in mountain regions : wildlife resources and forestry. B. Effects of pollution on natural ecosystems. C. Some aspects of wildlife utilization and management. D. International Bi 1970 Elliott, Hugh F. I. |