TY  - BOOK
AU  - N Krishna Pillai, 
TI  - Bala Belam
U1  - 551.38 
PY  - 1978///
CY  - Thiruvananthapuram
PB  - Kamalalya Printing Works
KW  - GENERAL STACK
KW  - NATURAL SCIENCE& MATHEMATICS
KW  - EARTH SCIENCE
KW  - GEOLOGY,HYDROLOGY & METEOROLOGYGeneralia
ER  -