TY  - BOOK
AU  - Davies,L.
AU  - Denial,M.J.
ED  - Heinemann Educational Books
TI  - Investigating chemistry
SN  - 0435641603
U1  - 542 23
PY  - 1973///.
CY  - London: 
PB  - Heinmann Educational Books, 
KW  - Chemistry
ER  -