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2by Van Waveren, E. 1423211765273, Ministry of Agriculture and Water Resources, Sana'a (Yemen) eng 407462, Hafadel, O.A., FAO, Rome (Italy) eng 184100
Published 1990Texto bibliotecaFAO IT -
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4by Ministry of Agriculture and Water Resources, Sana'a (Yemen) eng 407462, FAO, Rome (Italy). Land and Water Development Div. eng 183515, UNDP, New York (USA) eng 179963
Published 1990Texto bibliotecaFAO IT -
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