FAO. (1991). World soil resources reports N.71: Agro-ecological land resources assessment for agricultural development planning. Rome: FAO.
シカゴスタイル引用形FAO. World Soil Resources Reports N.71: Agro-ecological Land Resources Assessment for Agricultural Development Planning. Rome: FAO, 1991.
MLA引用形式FAO. World Soil Resources Reports N.71: Agro-ecological Land Resources Assessment for Agricultural Development Planning. Rome: FAO, 1991.
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