(1990). Wetland conservation: A review of current issues and required action. Gland, Switzland: IUCN.
शिकागो स्टाइल उद्धरणWetland Conservation: A Review of Current Issues and Required Action. Gland, Switzland: IUCN, 1990.
एमएलए उद्धरणWetland Conservation: A Review of Current Issues and Required Action. Gland, Switzland: IUCN, 1990.
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