TY  - GEN
AU  - Singh,S.S
AU  - Singh Rajesh
TI  - Principles and practices of agronomy
SN  - 9789327256376
AV  - SB185SIN1988 
PY  - 1988///
CY  - New Delhi
PB  - Kalyani publishers
KW  - agronomy...principles
N1  - includes index
ER  -