TY  - BOOK
AU  - Ramsden, E.N.
TI  - calculations for A-level: chemistry 
SN  - 9780748758395
AV  - QD 455  .E4R57 2001 
PY  - 2001///.
CY  - Chelteham
PB  - NelsonThornes
KW  - Chemistry
N1  - Includes index.
ER  -