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1by van der Valk, H.C.H.G., Landbouwuniversiteit, Wageningen (Netherlands). Dept. of Toxicology dut, Koeman, J.H.
Published 1987Texto bibliotecaFAO IT -
2by van der Valk, H.C.H.G., FAO, Rome (Italy). Plant Production and Protection Div. eng, Everts, J.W. (ed.)
Published 1990Texto bibliotecaFAO IT -
3by Van der Valk, H.C.H.G., FAO, Rome (Italy). Div. de la Production Vegetale et de la Protection des Plantes fre, Everts, J.W. (ed.)
Published 1990Texto bibliotecaFAO IT -
4by Mullie, W.C., FAO, Rome (Italy). Plant Production and Protection Div. eng, Andreasen, J., Abiola, F.A., Diatta, F., Van der Valk, H.C.H.G., Ministry of Agriculture, Dakar (Senegal). Crop Protection Directorate eng
Published 1997Texto bibliotecaFAO IT