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2The impact of agricultural research in tropical Africa. A study of the collaboration between the international and national research systems The impact of agricultural research in tropical Africa. A study of the collaboration between the international and national research systemsby Jahnke, H.E., Consultative Group on International Agricultural Research, Washington, DC (USA) eng, Kirschke, D., Lagemann, J.
Published 1987Texto bibliotecaFAO IT -
3by Kirschke, D., Humboldt-Univ., Berlin (Germany). Wirtschafts- und Sozialwissenschaften an der Landwirtschaftlich-Gaertnerischen Fakultaet ger, Morgenroth, S., Franke, C.
Published 1999Texto bibliotecaFAO IT -
4by 80330 Jahnke, H.E., 83219 Kirschke, D., 84555 Lagemann, J., 6250 Consultative Group on International Agricultural Research, Washington, D.C. (EUA)
Published 1987Texto bibliotecaIICA -
5by Kirschke, D. (ed.), Deutsche Stiftung fuer Internationale Entwicklung, Feldafing (Germany). Zentralstelle fuer Ernaehrung und Landwirtschaft ger, Basler, A. (ed.), Veelbehr, E. (ed.), Arbeitsgruppe Tropische und Subtropische Agrarforschung, Bonn (Germany) ger
Published 1993Texto bibliotecaFAO IT