| Author | Popularity |
| UN, New York (USA). Dept. of Technical Co-operation for Development eng |
30 |
| UN, New York (USA). Statistical Office eng |
6 |
| Interregional Meeting on River and Lake Basin Development with Emphasis on the Africa Region eng 10-15 Oct 1988 Addis Ababa (Ethiopia) |
2 |
| UN, New York (USA). Dept. of International Economic and Social Affairs eng |
2 |
| Chojnacka, H. (ed.) 166794 |
1 |
| Conference des Nations Unies sur la Normalisation des Noms Geographiques fre 18-31 Aug 1987 5 Montreal, Quebec (Canada) |
1 |
| Conferencia de las Naciones Unidas sobre la Normalizacion de los Nombres Geograficos spa 18-31 Aug 1987 5 Montreal, Quebec (Canada) |
1 |
| Cooper, P.J. (ed.) |
1 |
| Deutsche Stiftung fuer Internationale Entwicklung, Berlin (Germany) ger |
1 |
| Deutsche Stiftung fuer Internationale Entwicklung, Bonn (Germany) ger |
1 |
| Deutsche Stiftung fuer Internationale Entwicklung, Feldafing (Germany) ger |
1 |
| ECA, Addis Ababa (Ethiopia) eng |
1 |
| FAO, Rome (Italy) eng |
1 |
| FAO, Rome (Italy). Land and Water Development Div. eng 183515 |
1 |
| Kandiah, A. |
1 |
| Mather, T.H. 1423211766408 |
1 |
| National Workshop on Population and Economic Development in Nigeria in the 1980s eng 12-14 Sep 1979 Lagos (Nigeria) |
1 |
| Norwegian Water Resources and Energy Administration, Oslo (Norway) eng 31523 |
1 |
| ONU, New York (USA). Dept. de Co-operacion Tecnica para el Desarrollo spa |
1 |
| ONU, New York (USA). Dept. de la Cooperation Technique pour le Developpement fre |
1 |
