TY  - BOOK
AU  - Keulen, H.Van , Wolf, J.
TI  - Modelling of agricultural production: weather, soils and crops
SN  - 9022008584
U1  - 630 
PY  - 1986///
CY  - Netherlands
PB  - Centre for agricultural publishing and documentation
KW  - Agricultural science
KW  - Agriculture
ER  -