FAO. (1989). FAO conservation guide N.13.5: Watershed management field manual: Road design and construction in sensitives water-sheds. Rome: FAO.
シカゴスタイル引用形FAO. FAO Conservation Guide N.13.5: Watershed Management Field Manual: Road Design and Construction in Sensitives Water-sheds. Rome: FAO, 1989.
MLA引用形式FAO. FAO Conservation Guide N.13.5: Watershed Management Field Manual: Road Design and Construction in Sensitives Water-sheds. Rome: FAO, 1989.
警告: この引用は必ずしも正確ではありません.