Seeds of native and naturalized vetches of North America
By: by Charles R. Gunn.
Series: Agriculture handbook no. 392; Agriculture handbook (United States. Dept. of Agriculture) ;; no. 392.
Publisher: U.S. Agricultural Research Service; for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1971
Place of publication: Washington
Language: eng
Number of pages: 42
Subjects: Vetch -- North America.; Vetch -- Seeds.; Seeds -- Identification.
Notes: Bibliography: p. 42.