Conservation et utilisation rationnelle des écosystèmes forestiers en Afrique centrale. Dossier d'exécution 1989
El impacto ambiental de la exploracion y explotacion petrolera en El Péten, Guatemala. Recomendaciones generales y la consideracion del caso de estudio : la refineria propuesta para el area de explotacion del Xan 1989 Dulin, Paul A. |
Report in fulfilment of contracts for support to the Botswana national conservation strategy, phase II. Reports and accounts 1989 Cobham, Ralph O. |
Proposal to the National Environment Management Council of Tanzania regarding the further development of environmental planning and natural resource management in Tanzania 1989
Ngorongoro conservation and development project. Annual report of activities, February 1988-January 1989 1989 Perkin, Scott |
Revision of draft EIA procedure for Botswana. Report to IUCN - World Conservation Union 1989 Bisset, Ronald |
Report of environmental impact assessment training consultancy 1989 Bisset, Ronald | Cobham, Ralph O. | Driver, Paul |