TY  - BOOK
AU  - Gardner, Martin
AU  - Zheng xin,Liu
AU  - Jianchen,Li
TI  - A ha ling ji yi dong =: Aha! insight 
T2  - 20shi ji ke pu jing dian te cang
SN  - 9787030195869
AV  - QA 95 G37A 2007
PY  - 2007///
CY  - Bei jing
PB  - Ke xue chu ban she
KW  - MATHEMATICAL RECREATIONS
KW  - PUZZLES
KW  - PROBLEM SOLVING
N1  - หนังสือจีน General Book
ER  -