TY  - BOOK
AU  - OON,Hock Leong
TI  - Know Your 'O' Level Chemistry 
SN  - 978-981-273-727-4
U1  - 540. 
PY  - 2008///
CY  - Singapore
PB  - EPB Pan Pacific
KW  - 0
KW  - Grade 7-9
ER  -