From soil conservation to land husbandry : guidelines based on SIDA's experience 1993 Lundgren, Lill | Taylor, Geoff |
The economic value of species information and its role in biodiversity conservation : case studies of Costa Rica's National Biodiversity Institute and pharmaceutical prospecting 1993 Aylward, Bruce A. | Echeverría, Jaime |
Préservation du milieu naturel et développement économique en Tunisie : cas du parc national de l'Ichkeul 1984 El Ghezal, Abdelkader Ben Mohamed |
Recherche et développement en agriculture : développement en zones arides 1980 Billaz, R, | Dufumier, M. |
Problems in management of locally abundant wild mammals 1981 Jewell, Peter Arundel | Holt, Sidney Joseph |
People and protected areas in the Hindu Kush-Himalaya 1985 McNeely, Jeffrey A. | Thorsell, J. W. | Chalise, Suresh R. |