Custodians of the commons : pastoral land tenure in East and West Africa
1998
Lane, Charles R. |
Arid zones
Annuaire du Réseau zones arides
1998
Rouchouse, Charles |
Women's extension forestry manual : a methodology from northern Sudan
Bristow, Stephen |
A social and technical guide to irrigated shelterbelt establishment in northern Sudan, including traditional water extraction from the Nubian sandstone aquifer
1996
Bristow, Stephen |
Reviews in ecology : desert conservation and development. A festschrift for Prof. M. Kassas on the occasion of his 75th birthday
1997
Barakat, Hala N. |
Hegazy, Ahmad K. |
Tolba, Mostafa Kamal |
Environmental change in drylands : biogeographical and geomorphological perspectives
1994
Millington, A. C. |
Pye, Ken |
Vegetation and land use in the Mathews Range Areas, Samburu-District, Kenya
1990
Bronner, Gerhard |
Dryland degradation : causes and consequences
1991
Poulsen, Ebbe |
Lawesson, Jonas |
Végétation de la République d'Haïti
1984
Robart, Guy |