000 00351nam a2200145Ia 4500
020 _a8171824080
082 _b801
_a510
100 _a"CHATURVEDI,B.K"
245 0 _aMATHEMATICAL PUZZLES & BRAIN TWISTERS
260 _bDIAMOND POCKET BOOKS,
_c2004
300 _a158
944 _cBK
999 _c101041
_d101041