TY  - BOOK
AU  - Chopra, V. L. and others,
TI  - Crop Productivity and Sustainability - Shaping the Future : Proceedings of 2nd International Crop Science Congress
SN  - 8120412125
U1  - 633 
PY  - 1998///
CY  - New Delhi
PB  - Oxford & IBH Publishing Co. Pvt. Ltd.
KW  - Field & plantation crops
ER  -