TY  - BOOK
AU  - Singh, S.S.
AU  - Singh, Rajesh
TI  - Principles & practices of agronomy
SN  - 9789327215694
U1  - 630 S 64 P 
PY  - 1988///
CY  - Delhi
PB  - Kalyani
KW  - Agronomy
ER  -