TY  - BOOK
AU  - Phillips,Charles
TI  - Numerical thinking: 50 brain-training puzzles to change the way you think 
SN  - 9781859063682
PY  - 2013///
CY  - London
PB  - Connections Book Pub
KW  - Numeracy
KW  - problems, exercises, etc
N1  - includes suggested readings and resources
ER  -