TY  - BOOK
AU  - Cohen,Gilles
ED  - International Championship of Mathematics
TI  - 50 mathematical puzzles and problems: orange collection : from the International Championship of Mathematics 
SN  - 1559534990 (orange collection)
AV  - QA95 F54
U1  - 793.74 22
PY  - 2001///
CY  - Emeryville, California
PB  - Key Curriculum
KW  - Matemáticas recreativas
ER  -