TY  - BOOK
AU  - Gardner,Martin
TI  - The colossal book of mathematics: classic puzzles, paradoxes, and problems : number theory, algebra, geometry, probability, topology, game theory, infinity, and other topics of recreational mathematics 
SN  - 0393020231
AV  - QA 95 G37.2001
PY  - 2001///
CY  - New York
PB  - Norton
KW  - Mathematical recreations
KW  - Recreaciones matemáticas
ER  -