IUCN twelfth technical meeting, Banff, Alberta, Canada, 12 to 15 September 1972 ; edited by Hugh F. I. Elliott
IUCN twelfth technical meeting, Banff, Alberta, Canada, 12 to 15 September 1972 ; edited by Hugh F. I. Elliott
- Morges International Union for Conservation of Nature and Natural Resources 1973
- 383p.
- IUCN publications new series; no.28 .
Conservation of natural resources
333.7215 IUC
Conservation of natural resources
333.7215 IUC