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3Texto bibliotecaFAO IT
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4Texto bibliotecaFAO IT
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5Texto bibliotecaFAO IT
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6by Bergman, P., National Workshop on Women in Agricultural Development eng 26 Jun 1983 Awassa (Ethiopia), Fikerte Haile
Published 1983Texto bibliotecaFAO IT -
7by Barnett, J.P., Department of Agriculture, Washington, DC (USA) eng, Bergman, P.W., Ferguson, L.W., Nash, R.G., Ochs, P.M., Environmental Protection Agency, Washington, DC (USA) eng
Published 1980Texto bibliotecaFAO IT