TY  - BOOK
AU  - Ajayakumar, K
TI  - Kudivellam
SN  - 9788188146154
U1  - M8 
PY  - 2004///
CY  - Chengannur
PB  - Rainbow Book Publishers
KW  - Drinking water
KW  - Study
KW  - Popular science
KW  - General awareness
ER  -