Mangrove resources in Nigeria : use and management perspectives 1990 Adegbehi, J. O. | Nwaigbo, L. C. |
The aquaculture potential of wetlands in Niger state, Nigeria, West Africa 1989 Verdegem, M. C. J. | Huisman, E. A. | Hekstra, P. |
Nigeria an integrated rainforest conservation and rural development masterplan for the Oban Hills region of Cross River state 1988
Problems of land degradation in Commonwealth Africa : a study of the scope of Commonwealth action 1989 Milner, C. | Douglas, M. G. |