TY  - BOOK
AU  - Rabbinge, R  .
AU  - Vanlaar,H H  .
AU  - Ward ,S H  .
TI  - Simulation and systems management in crop protection / 
SN  - 90  220  0899  1
U1  - 633.08 
PY  - 1989///
CY  - Netherland : 
PB  - Centre for agricultural publishing and documentation , 
ER  -