TY  - BOOK
AU  - Chopra, S. L.
AU  - Kanwar, J. S.
TI  - Analytical agricultural chemistry
SN  - 817096444x
U1  - 630.24 
PY  - 1991///
CY  - Ludhiana
PB  - Kalyani
N1  - Includes index
ER  -