000 00264nam a2200121Ia 4500
008 230321s9999 xx 000 0 und d
082 _bMAN
100 _aMangal,Uma
245 0 _aSamajik Vigyan Shikshan
260 _bArya Book
_c2016
300 _a452
942 _cBK
999 _c3252
_d3252