TY  - BOOK
AU  - Walia, U.S.
AU  - Walia, S.S.
AU  - Kler, D.S.
TI  - Science of agronomy
SN  - 9788172336981
AV  - SW94.5.S85.W3 2011 
PY  - 2011///
CY  - New delhi
PB  - Scientific pub
KW  - Agriculture
ER  -