Population ecology of the mallard.
Contributors: Kimball, Charles F.; U.S. Fish and Wilflife Service.
Series: Resource publication (U.S. Fish and Wildlife Service) -- 147.
Publisher: U.S. Dept. of the Interior, Fish and Wildlife Service
Published: 1982
Place of publication: Washington, D.C
Language: eng
Number of pages: 127
Other titles: Distribution and derivation of the harvest.