TY  - BOOK
AU  - Smullyan Raymond M
TI  - Logical labyrinths
SN  - 978-1-56881-443-8
U1  - 511.3 
PY  - 2009///
CY  - Wellesley
PB  - A K Peters
KW  - Mathematical logic
KW  - Mathematical recreations
KW  - Puzzles
KW  - Symbolic logic
ER  -