Cooperative plant pest report - United States. Animal; Plant Health Inspection Service. (The Service, 1976)

The corn crops: a discussion of maize, kafirs, and sorghums as grown in the United States and Canada - Montgomery, E. G. (Edward Gerrard), 1878 - (The Macmillan company, 1913)

The corn crops: a discussion of maize, kafirs, and sorghums as grown in the United States and Canada - Montgomery, E. G. (Edward Gerrard), 1878 - (Macmillan, 1920)