TY  - BOOK
AU  - Singh Chhidda
AU  - Singh Chhidda
AU  - Singh Prem
AU  - Singh Rajbir
TI  - Modern techniques of raising field crops
U1  - 631.58 
PY  - 2007///
CY  - New delhi
PB  - Oxford & IBH publishing co. PVT LTD
ER  -