TY  - BOOK
AU  - V K VENUGOPAL
AU  - M M KOSHY
TI  - CATION EXCHANGE STUDIES IN KERALA SOILS
U1  - E N69 VE 30 
PY  - 1969///
CY  - AGRICULTURAL COLLEGE AND RESEARCH INSTITUTE VELLAYANI
PB  - DIVISION OF AGRICULTURAL CHEMISTRY
ER  -