TY  - BOOK
AU  - Sprague, Roderick.
TI  - Diseases of cereals and grasses in North-America
U1  - 632.4 
PY  - 1950///
CY  - New York
PB  - Ronald
KW  - Cereales
KW  - Enfermedades
KW  - Hongos en agricultura
KW  - Pastos
ER  -