000 00363nam a2200145Ia 4500
020 _a9788171824083
082 _b1140
_a000
100 _a"CHATURVEDI , B.K"
245 0 _aMATHEMATICAL PUZZLES AND BRAIN TWIOSTERS
260 _bDIAMOND BOOKS
_aNEW DELHI
_c2004
300 _a158
944 _cTR
999 _c365169
_d365169