TY  - BOOK
AU  - Joseph F. Cox
AU  -  Lyman Jackson, 
TI  - Field crops and land use
U1  - 633 
PY  - 1949///
CY  - Newyork
PB  - John Wiley and Sons Inc
N1  - Joseph F. Cox & Lyman Jackson: Field crops and land use.  Newyork.  John Wiley and Sons Inc, 1949.--(633COX)
ER  -