FAO. (1991). World soil working group in land use planning N.68: Land use planning applications. Rome: FAO.
シカゴスタイル引用形FAO. World Soil Working Group in Land Use Planning N.68: Land Use Planning Applications. Rome: FAO, 1991.
MLA引用形式FAO. World Soil Working Group in Land Use Planning N.68: Land Use Planning Applications. Rome: FAO, 1991.
警告: この引用は必ずしも正確ではありません.