TY  - BOOK
AU  - Barr,Stephen
AU  - Barr,Stephen
TI  - Mathematical brain benders: 2nd miscellany of puzzles 
SN  - 0486242609
PY  - 1982///
CY  - New York
PB  - Dover Publications
KW  - Mathematical recreations
KW  - Puzzles
N1  - Reprint. Originally published: 2nd miscellany of puzzles. New York : Macmillan, 1969
ER  -