TY  - BOOK
AU  - Wyllie, T.D.
AU  - Scott, D.H.
TI  - Say bean diseases of the north central region
U1  - PA 635.655 W9 
CY  - St. Paul, Minn.
PB  -  American Phytopathological Society
KW  - Soya
KW  -  enférmedades
ER  -