TY  - BOOK
AU  - Sadler, A. J.
TI  - Understanding pure mathematics
SN  - 978-0-19-914243-9
AV  - QA 43.S23 2014 
PY  - 2014///
CY  - Oxford
PB  -  Oxford University Press
KW  - Mathematics- Examinations, Questions
ER  -