000 00283nam a22001217a 4500
003 OSt
100 _aTyagi, Gurusaran Das
245 _aSamajik Addhyan Shikshan ka Pranali Vigyan
260 _aAgra
_bAgarwal Publication
_c2015
300 _a410p.
901 _aE2207
942 _2ddc
_cBK
999 _c4557
_d4557