000 00242nam a22001217a 4500
003 OSt
100 _aMangal, S K
245 _aGanit Shikshan
260 _aAgra
_bAggarwal Pub.
_c2015
300 _a163p.
901 _a2229BED
942 _2ddc
_cBK
999 _c37608
_d37608