Corn production
[by G. F. Sprague, and W. E. Larson.
- Washington] Agricultural Research Service, U.S. Dept. of Agriculture; [for sale by the Superintendent of Documents, U.S. Govt. Print. Off., 1966]
- 37 p. illus. 24 cm.
- United States. Dept. of Agriculture. Agriculture handbook ; no. 322 .
- Agriculture handbook (United States. Department of Agriculture) ; no. 322. .