TY  - GEN
AU  - Gupta, A. K.
AU  - Varshney, M. L.
TI  - Practical manual for agricultural chemistry: part II
SN  - 8170962449
U1  - 630 
PY  - 1989///
CY  - New Delhi
PB  - Kalyani publishers
KW  - AGRICULTURE AND RELATED TECHNOLOGIES
ER  -