Population, resources and development : a guidebook
1988
Rennie, J. K. |
Natural resources
Rapport de la mission d'identification au Batha [République du Tchad] du 20 janvier au 10 mars 1987
1987
Denève, Robert |
Beck, R. |
Reinders, R. |
Kieboom, W. van den |
The East Usambaras resources and their exploitation : preliminary draft
1987
Bensted-Smith, R. |
Hamilton, Alan |
Botswana natural resources expertise profile
1987
Warr, Eleanor |
Conservation in the Antarctic : report of the Joint IUCN/SCAR working group on long-term conservation in the Antarctic
1986
Beddington, J. R. |
Bonner, W. Nigel (William Nigel) |