Aerial surveys of waterfowl production in North America, 1955-71
By: by Charles J. Henny, David R. Anderson, and Richard S. Pospahala.
Contributors: Anderson, David Raymond, 1942-; Pospahala, Richard S.
Series: Special scientific report--wildlife; no. 160
Publisher: U.S. Bureau of Sport Fisheries and Wildlife; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.]
Published: 1972
Place of publication: Washington
Language: eng
Number of pages: 48
Subjects: Waterfowl -- North America -- Statistics.; Waterfowl management -- North America.; Bird populations -- North America.; Aerial surveys in wildlife management -- North America.; Bird surveys -- North America.
Genres: Statistics.
Notes: Bibliography: p. 17.