Waterfowl from the air
Subtitle: an inventory guide
By: by Ray Glahn.
Contributors: United States. Bureau of Sport Fisheries and Wildlife.
Publisher: U.S. Dept. of the Interior, Fish and Wildlife Service, Bureau of Sport Fisheries and Wildlife
Published: 1967
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 26
Subjects: Waterfowl management.; Birds -- Counting.
Notes: "May, 1967"--p. 26.