000 00247nam a22001097a 4500
003 OSt
100 _aTyagi, Gurusaran Das
245 _aSamajik Addhyan ka Shikshan
260 _aAgra
_bAgarwal Publication
_c2015
300 _a356p.
942 _2ddc
_cBK
999 _c4560
_d4560