Directory of wetlands of international importance : sites designated for the list of wetlands of international importance /
World Conservation Monitoring Centre.
International Union for Conservation of Nature and Natural Resources.
Conference of Contracting Parties to the Convention on Wetlands of International Importance Especially as Waterfowl Habitat(4th :1990 :Montreux, Switzerland)
Gland, Switzerland : IUCN,
c1990.
Includes index.
Wetlands
Wildlife refuges
Bird refuges
Nature conservation