FAO. (1989). FAO conservation guide N.21: Role of forestry in combating desertification. Rome: FAO.
シカゴスタイル引用形FAO. FAO Conservation Guide N.21: Role of Forestry in Combating Desertification. Rome: FAO, 1989.
MLA引用形式FAO. FAO Conservation Guide N.21: Role of Forestry in Combating Desertification. Rome: FAO, 1989.
警告: この引用は必ずしも正確ではありません.