Conservation et utilisation rationnelle des écosystèmes forestiers en Afrique centrale (document de travail) : proposition pour un plan d'action régional 1988
Report in fulfilment of contract for support to the Botswana national conservation strategy - phase II 1988 Cobham, Ralph O. |
Feasibility study for the establishment of a West African regional captive breeding centre. Final report to the European Commission 1989 Dixon, Alexandra | Newby, John E. |
Conservation et utilisation rationnelle des écosystèmes forestiers en Afrique centrale. Dossier d'exécution 1989
Report in fulfilment of contracts for support to the Botswana national conservation strategy, phase II. Reports and accounts 1989 Cobham, Ralph O. |
East Usambaras agricultural development and environmental conservation project. A proposal for phase II, July 1990-June 1993 1990