Cita APA

United Nations Environment Programme. (1980). Directory of Wetlands of International Importance in the Western Palearctic. Gland: IUCN.

Citación estilo Chicago

United Nations Environment Programme. Directory of Wetlands of International Importance in the Western Palearctic. Gland: IUCN, 1980.

Cita MLA

United Nations Environment Programme. Directory of Wetlands of International Importance in the Western Palearctic. Gland: IUCN, 1980.

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