Managraphic study of bean diseases and methods for their control
Zaumeyer, W.J., Thomas, H.R.
Managraphic study of bean diseases and methods for their control - Washington 1957 - 1-255 p. - Managraphic, Diseases United States Department of Agriculture. Technical Bulletin No. 868 .
Managraphic study of bean diseases and methods for their control - Washington 1957 - 1-255 p. - Managraphic, Diseases United States Department of Agriculture. Technical Bulletin No. 868 .