TY  - BOOK
AU  - Gangopadhyay, Ajoy  .
TI  - Crop production systems management / 
SN  - 81-89729-64-0
U1  - J:5(8) 
PY  - 2007///
CY  - New Delhi : 
PB  - Gene-Tech Books , 
KW  - Management-Crop Production
ER  -