TY  - BOOK
AU  - U.S. Department of Agriculture ,Agriculture Reserch Service
TI  - Corn diseases in the United States and their control
U1  - 633.159 U-4C 
PY  - 1974///
CY  - Washington,U.S.
KW  - MAIZE -- U.S. -- DISEASES AND PESTS
ER  -