TY  - BOOK
AU  - Tan,Yin Toon
TI  - Discover chemistry. GCE 'O' level science
U1  - 540.712 T161D 2007 
PY  - 2007///
CY  - Singapore : 
PB  - Marhall Cavendish Education, 
KW  - Chemistry -- Singapore -- Textbooks.
KW  - Chemistry. Singapore
ER  -