TY  - GEN
AU  - Chopra, S. L
AU  - Kanwar, J. S.
TI  - Analytical agricultural chemistry
SN  - 817096444X
U1  - 631 
PY  - 1976///
CY  - Ludhiana
PB  - Kalyani publishers
KW  - Specific techniques;apparatus,equipment,materials
KW  - Agriculture and related technologies
ER  -