(1990). Wetland conservation: A review of current issues and required action. Gland, Switzland: IUCN.
シカゴスタイル引用形Wetland Conservation: A Review of Current Issues and Required Action. Gland, Switzland: IUCN, 1990.
MLA引用形式Wetland Conservation: A Review of Current Issues and Required Action. Gland, Switzland: IUCN, 1990.
警告: この引用は必ずしも正確ではありません.