000 00287nam a2200121Ia 4500
008 230802s9999 xx 000 0 und d
100 _aGupta, Anju
245 0 _aInteresting facts of Mathematics
260 _bAPH
_aND
_c2015
300 _a77
650 _aSpecial Education
942 _cBK
999 _c13172
_d13172