TY  - BOOK
AU  - Harikumr, G.R. 
AU  - Nithil Girish 
AU  - Renjith R. 
TI  - Science & technology
T2  - How how encyclopedia 
SN  - 9788177971422
U1  - 503 
PY  - 2009///
CY  - Kerala
PB  - Siso Books 
KW  - Science
KW  - Encyclopedia
KW  - Juvenile literature
ER  -