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1Digital revistaSCIELO
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2conference_item bibliotecaCIRAD FR
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3
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4by Briggle, L.W., Ciba-Geigy A.G., Basel (Switzerland). Agricultural Div. eng, Schmidt, J.W., Laloux, R., Falisse, A., Poelaert, J.
Published 1980Texto bibliotecaFAO IT