Report of the chief of the Bureau of Biological Survey.
Title from caption.Report for 1939/1940 issued in the Report of the Secretary of the Interior.Report year ends June 30.Mode of access: Internet.Merged with: Report of the United States Commissioner of Fisheries for the fiscal year ... with appendixes, to form: United States. Fish and Wildlife Service. Annual report of the director of the Fish and Wildlife Service to the Secretary of the Interior
Wildlife conservation, Zoology, Economic, Natural history
Publisher: Washington, D.C. : U.S. Dept. of Agriculture, Bureau of Biological Survey,
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