000 00288nam a2200121Ia 4500
008 211224s9999 xx 000 0 und d
020 _a9788183822169
082 _a510 PRI
245 0 _aBrain - ticklers in mathematics
250 _a1st ed
260 _aNew Delhi,
_c2016
300 _a215p.
999 _c33684
_d33684