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1by Gordon, O.L.A., FAO, Rome (Italy). Agriculture Dept. eng, Kater, G., Schwaar, D.C.
Published 1979Texto bibliotecaFAO IT -
2by Birchall, C.J., FAO, Rome (Italy) eng, Gordon, O.L.A., Lamin, A.S., Alkire, W.K., Hawker-Parker, H.
Published JulTexto bibliotecaFAO IT -
3by Gordon, O.L.A., FAO, Rome (Italy). Agriculture Dept. eng, National Remote Sensing Seminar on Land Resources eng 24 Apr 1978 1 Freetown (Sierra Leone), Griffin, O.L.D. (comp.), Blyden, F. (comp.)
Published 1979Texto bibliotecaFAO IT