TY  - BOOK
AU  - Buttle, Joseph Walter,
AU  - Daniels, David John
AU  - Backett, Peter John,
TI  - Chemistry: A unified approach 
SN  - 0408705418
AV  - QD33 B877 1974
PY  - 1974///
CY  - London
PB  - Butterworths
KW  - Química
ER  -