TY  - BOOK
AU  - Snedden,Robert
TI  - Sound and light
T2  - Smart science
SN  - 0431037213
U1  - 534 23
PY  - 1999///
CY  - Oxford : 
PB  - Heinemann Library , 
KW  - Light - Juvenile literature ; Sound - Juvenile literature
ER  -