TY  - BOOK
AU  - Kranz, Jurgen.
TI  - Epidemics of Plant Diseases: Mathematical Analysis and Modeling / 
U1  - I:(L:4) 
PY  - 1957///
CY  - London : 
PB  - Chapman & Hall Ltd. , 
KW  - Botany <Epidemics>
ER  -