000 00261nam a22001217a 4500
003 OSt
100 _aKulshreshtha, Pradeep Kumar
245 _aRasayan Vigyaan Shikshan
260 _aAgra
_bAggarwal Pub.
300 _a97p.
901 _a4266BED
942 _2ddc
_cBK
999 _c36731
_d36731