TY  - BOOK
AU  - O`Beirne, T H
TI  - Puzzles and Paradoxes
U1  - 793.74 
PY  - 1900///
CY  - London
PB  - Oxford University Press
KW  - General Stack
KW  - Mathematical recreations
KW  - PuzzlesParadoxes
KW  - Generalia
ER  -