Potato diseases and their treatment /
Smith, Erwin F.
Potato diseases and their treatment / by Erwin F. Smith - Washington : Government printing Office, 1898 - 22 p. : ill. ; 23 cm - Farmers' bulletin. U.S. Department of agriculture ; n. 68 .
Potato diseases and their treatment / by Erwin F. Smith - Washington : Government printing Office, 1898 - 22 p. : ill. ; 23 cm - Farmers' bulletin. U.S. Department of agriculture ; n. 68 .