TY  - BOOK
AU  - Ling, John
TI  - Higher 1 practice for AQA, Edexcel and OCR two-tier GCSE mathematics
SN  - 9780521689977
U1  - 510 LIN 
PY  - 2007///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Mathematics
ER  -