Prickly comfrey as a forage crop
By: by H.N. Vinall
Contributors: United States. Dept. of Agriculture; United States. Bureau of Plant Industry; United States. Government Printing Office
Series: Circular / United States, Bureau of Plant Industry -- no. 47; Circular (United States. Bureau of Plant Industry) -- no. 47.
Publisher: U.S. Dept. of Agriculture, Bureau of Plant Industry
Published: 1910
Place of publication: Washington, D.C
Language: eng
Subjects: Comfrey; Forage
Notes: Cover title.

"Issued January 26, 1910."

Includes bibliographical references.