| 000 | 00350nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 220718s1989||||xx |||||||||||||| ||und|| | ||
| 020 | _a0716719878 | ||
| 100 | 1 | _aGardner, M | |
| 245 | 1 |
_aPenrose tiles to trapdoor ciphers ...& the return of dr.Matrix _cM. Gardner |
|
| 260 |
_aNew York _bW.H Freeman & Company _c1989 |
||
| 300 |
_aix _e311 |
||
| 942 | _cBK | ||
| 999 |
_c22237 _d22237 |
||