TY  - BOOK
AU  - Gardner, Martin
TI  - Aha! gotcha =: A ha! yuan lai ru chi 
SN  - 9787030228031
AV  - QA 95 G37A 2008
PY  - 2008///
CY  - Beijng
PB  - Ke xue chu ban she
KW  - MATHEMATICAL RECREATIONS
KW  - PARADOX
KW  - LOGIC PUZZLES
N1  - หนังสือจีน General Book
ER  -