TY  - BOOK
AU  - Zadoks, Jan C.
TI  - Epidemiology and plant disease management
U1  - 632.008.2 L9 
PY  - 1979///
CY  - New York
PB  - Oxford University Press
KW  -  Jan C.Zadoks (and) Richard D.Sehein.
KW  - Sehein, Richard D.
KW  - Epidemiology,Plant diseases
ER  -