000 00292nam a2200133Ia 4500
100 _aGardner Martin
942 _cBK
654 _aMathematics
245 _aMathematical Puzzles & Diversion
260 _bPenguin Books
_aLondon
_c1991
300 _a154
546 _aENGLISH
999 _c23447
_d23447