TY  - GEN
AU  - Gardner, Martin
TI  - The colossal book of mathematics: classic puzzles, paradoxes and problems
SN  - 9780393020236
U1  - 793.74 GAR/C 
PY  - 2001///
CY  - New York
PB  - W.W. Norton & Company
KW  - Mathematical recreations
ER  -