TY  - BOOK
AU  - Leonard K J
AU  -  Fry W E
TI  - Plant desease epidemiology: Population dynamics and managements
U1  - I5:4, M6.1 
PY  - 1986///
CY  - New York    
PB  -  Macmillan Pub       
KW  - Botany
ER  -