TY  - BOOK
AU  - France,J.
AU  - Thornley,J.H.M.
TI  - Mathematical models in agriculture: a quantitative approach to problems in agriculture and related sciences 
U1  - 630 
PY  - 1984///
CY  - London
PB  - Butterworths
KW  - Agriculture
KW  - Mathematical models
ER  -