000 00243nam a22001097a 4500
003 OSt
100 _aShrivastava, D N
245 _aSamajopyogi, Utpadak Kariye
260 _aAgra
_bAgarwal Publication
_c2015
300 _a224p.
942 _2ddc
_cBK
999 _c4575
_d4575