The Ramsar Convention manual : a guide to the Convention on Wetlands of International Importance especially as Waterfowl Habitat /
Davis, Tim(Tim J.)
International Union for Conservation of Nature and Natural Resources.Ramsar Convention Bureau.
Gland, Switzerland : Ramsar Convention Bureau,
1994.
Includes bibliographical references  (p. 127-130) and index.
Convention on Wetlands of International Importance especially as Waterfowl Habitat (1971)
Wetland conservation
Birds, Protection of