TY  - BOOK
AU  - AMERY,HEATHER
AU  - LITTEL,ANGELA
TI  - THE KNOW HOW BOOK OF BATTERIES AND MAGNETS / 
U1  - CH 
PY  - 1992///
CY  - [S.N] : 
PB  - USBORNE LANGUAGE BOOKS ، 
KW  - CHILDREN
KW  - BATTERIES
KW  - MAGNETS
ER  -