TY  - BOOK
AU  - J.R. Bond
TI  - Arable crops
U1  - 633 
PY  - 1949///
CY  - London
PB  - HIS Majesty`s Stationery Office
N1  - J.R. Bond: Arable crops.  London.  HIS Majesty`s Stationery Office, 1949.--(633BON)
ER  -