TY  - BOOK
AU  - Robert Wensley.
TI  - Edexcel international GCSE and certificate chemistry practice book / 
SN  - 9781444179200
AV  - QD 31 .W476 2013
PY  - 2013///
CY  - London : 
PB  - Hodder Education, 
KW  - Chemistry
KW  - Problems, exercises, etc
N1  - Includes Index.
ER  -