The feasibility of control measures for North American Ruddy ducks Oxyura jamaicensis in the United Kingdom /
Hughes, Baz.
Wildfowl & Wetlands Trust.
Great Britain.Department of the Environment.
[London] : Department of the Environment,
1996.
A report by the Wildfowl & Wetlands Trust to the Department of the Environment.
Contract no. CRO123.
Includes bibliographical references.