TY  - BOOK
AU  - Simons, M. D.
TI  - Crown rust of oats and grasses
PY  - 1970///
CY  - Worceste, Mass.
PB  - American Phytopahological Society
KW  - Avena
KW  - Enfermedades
KW  - Pastos
KW  - Puccinia coronata
ER  -