WALTON, W.R.
Cutworms and their control in corn and other cereal crops / By W.R.Walton. -- Washington : U.S. Department of Agriculture, 1946 - 7 p. il. -- (Farmer's Bulletin ; 739).
Fitopatología
Plagas del campo
632.6
Cutworms and their control in corn and other cereal crops / By W.R.Walton. -- Washington : U.S. Department of Agriculture, 1946 - 7 p. il. -- (Farmer's Bulletin ; 739).
Fitopatología
Plagas del campo
632.6