Grass varieties in the United States /
[by A.A. Hanson].
- Rev. June 1965.
- Washington, D.C. : Agricultural Research Service, U.S. Dept. of Agriculture, 1965.
- 102 p. ; 26 cm.
- Agriculture handbook / United States Department of Agriculture ; no. 170 .
- Agriculture handbook (United States. Department of Agriculture) ; no. 170. .