TY  - SER
AU  - Chopra, S.L
AU  - Kanwar, J.S.
ED  - Association of Official Agricultural Chemists (U.S.)
TI  - Analytical Agricultural Chemistry
U1  - 630.24 23
PY  - 1976///
CY  - NewDelhi
PB  - Kalayani , 
KW  - Agricultural chemistry
KW  - Periodicals
ER  -