TY  - BOOK
AU  - Chatterjee, B.N.
AU  - Maiti, S.
TI  - Cropping system theory & practice (2nd edition)
SN  - 81 204 0419 X
U1  - 633 C 39 C 
PY  - 1997///
CY  - New Delhi
PB  - Oxford & IBH
KW  - Crops
ER  -