TY  - BOOK
AU  - Filipiak,Anthony S.
TI  - Mathematical puzzles and other brain twisters
U1  - 793.74 
PY  - 1969///
CY  - New York
PB  - A.S. Barnes
KW  - Mathematical recreations
KW  - Magic squares
KW  - Puzzles
KW  - Scientific recreations
ER  -