Mangroves du Sénégal et de la Gambie, écologie, pédologie, géochimie : mise en valeur et aménagement 1985 Marius, Claude |
The impact of pesticides on Palearctic migratory birds in the Western Sahel 1989 Mullié, Wim C. | Verwey, P. J. | Berends, A. G. | Everts, J. W. | Sène, F. | Koeman, J. H. |
Report of the expert consultation on the improvement of animal health services in CILSS countries, Banjul, The Gambia 23-27 June 1986 1986
Problems of land degradation in Commonwealth Africa : a study of the scope of Commonwealth action 1989 Milner, C. | Douglas, M. G. |