TY  - BOOK
AU  - Earl,B.
TI  -  /GCSE chemistr 
SN  - 9780719586163
AV  - QD461 .B84 1986
U1  - 541.222 22
PY  - 2001///
CY  - Cambridge [Cambridgeshire], New York
PB  - Cambridge University Press
KW  - Molecular theory
KW  - Molecular weights
ER  -