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1Participatory development of agricultural innovations: procedures and methods of on-farm research Participatory development of agricultural innovations: procedures and methods of on-farm researchby 131068 Werner, J., 9270 GTZ, Eschborn (Alemania), 18285 Swiss Development Cooperation, Bern (Suiza)
Published 1993bibliotecaIICA -
2Re-establishing agriculture as a priority for development policy in Sub-Saharan Africa Re-establishing agriculture as a priority for development policy in Sub-Saharan Africaby 39600 Abdulai, A., 61997 Delgado, C.L. eds., 9531 IFPRI, Washington, DC (EUA), 18288 Swiss Federal Ins. of Technology, Zurich (Suiza). Dept. of Agricultural Economics, 18285 Swiss Development Cooperation, Bern (Suiza)
Published 1995bibliotecaIICA