Wild-duck foods of North Dakota lakes
By: by Franklin P. Metcalf.
Contributors: United States. Dept. of Agriculture.
Series: Technical bulletin / United States Department of Agriculture -- no. 221; Technical bulletin (United States. Dept. of Agriculture) -- 221
Publisher: G.P.O.
Published: 1931
Place of publication: Washington, D.C
Language: eng
Number of pages: 72
Subjects: Botany -- North Dakota; Ducks -- Feeding and feeds.
Notes: Cover title.

Includes 2 fold. tables.

"Errata" slip pasted in at p. 4.

Includes bibliographical references.