000 00361nam a2200157Ia 4500
020 _a0000000000000
082 _b42
_a510
100 _a"B.K.Chatervedi"
245 0 _aMathematics Puzzles and Brain Twisters
260 _c1994
300 _a126
942 _cBK
944 _cLibrary books
999 _c808232
_d808232