TY  - BOOK
AU  - Phillips,Charles
TI  - How to think 50 puzzles for logical thinking
SN  - 9788179662779
U1  - 793.73 22
PY  - 2009///
CY  - Chennai
PB  - Emerald Pub.
KW  - Puzzles
KW  - Mathematical recreations
KW  - Maze puzzles
KW  - Picture puzzles
ER  -