000 00445nam a2200145Ia 4500
005 20260205100622.0
008 260111s9999||||xx |||||||||||||| ||und||
020 _a978-1-4022-3857-4
082 _a793.73 G921B
100 _aGruber, Gary R.
245 0 _aWorld`s 200 hardest brain teasers: Mind boggling puzzles, problems, and curious questions to sharpen your brain
260 _aNaperville
_bSourcebooks
300 _a188p.
942 _cBK
999 _c235501
_d235501