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5Planned change in farming systems: progress in on-farm research Planned change in farming systems: progress in on-farm researchpor Tripp, R. (ed.)
Publicado 1991Texto bibliotecaFAO IT -
6Working Paper bibliotecaCIMMYT
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7Working Paper bibliotecaCIMMYT
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8Libro bibliotecaCGIAR
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9Libro bibliotecaCGIAR
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10Libro bibliotecaCIMMYT
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11Libro bibliotecaCIMMYT
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12Working Paper bibliotecaCIMMYT
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13Journal Article bibliotecaCGIAR
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15Working Paper bibliotecaCIMMYT
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16Working Paper bibliotecaCIMMYT
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17Report bibliotecaCGIAR
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18Report bibliotecaCIMMYT
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