TY  - BOOK
AU  - Dent, J.B.
TI  - Systems simulation in agriculture
U1  - 631:519.2:681.142 L9 
PY  - 1979///
CY  - London
PB  - Applied Science Publishers
KW  -  J.B.Dent, M.J.Blackie.
KW  - Blackie, M.J.
KW  - Agriculture,Simulation Models
ER  -