Report on the national conservation strategy : Botswana
1989
IUCN
Natural resource accounts for Botswana : environmental accounting for a natural resource-based economy
1989
Perrings, Charles |
Gilbert, Alison |
Pearce, David W. (David William) |
Harrison, Anne |
Sustainable development : learning for tomorrow's world : international conference on environmental education, Bo, Telemark, Norway, June 8-10 1988 : report
1988
Fjortoft, Ingunn |
Halle, Per Kristian |
National conservation strategy : Botswana : final reports and accounts
1990
Cobham, Ralph O. |
National conservation strategy : notes on the implementation administration and enforcement of environmental law and policy in Botswana
1988
Takirambudde, Peter Nanyenya |
International trade in ornamental shells
1981
Wells, Sue |