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1by 71616 Gibson, R.W., 126986 Valkonen, J., 104050 Pehu, E., 81536 Jones, M.G.K., 82345 Karp, A., 124370 Thottappilly, G., 95657 Monti, L.M., 94844 Mohan Raj, D.R., 95811 Moore, A.W., 18330 Technical Centre for Agricultural and Rural Cooperation, Wageningen (Países Bajos), 10742 IITA, Ibadan (Nigeria)
Published 1992Texto bibliotecaIICA