Wild-duck foods of North Dakota lakes
By: by Franklin P. Metcalf
Series: Technical bulletin / United States Department of Agriculture -- no. 221; Technical bulletin (United States. Department of Agriculture) -- no. 221
Publisher: U.S. Dept. of Agriculture
Published: 1931
Place of publication: Washington
Language: eng
Number of pages: 72
Subjects: Botany; Ducks; Feeding and feeds
Notes: "Contribution from Bureau of Biological Survey."

Cover title.

Bibliography: p. 71.

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