TY  - GEN
AU  - Chatterjee, B. N. 
AU  - Mandal, B. K. 
AU  - Maiti, S. 
TI  - Cropping system : theory & practice
SN  - 812040419X
U1  - 631.58 
PY  - 1989///
CY  - New Delhi
PB  - Oxford & IBH Publishing Co. Pvt. Ltd.
KW  - Cultivation and harvesting
KW  - Special methods of cultivation
ER  -