000 00246nam a22001097a 4500
003 OSt
100 _aGayatri, Kumari
245 _aShiksha Manovigyan Avam Sankhyki
260 _aAgra
_bAgarwal Publication
_c2015
300 _a455p.
942 _2ddc
_cBK
999 _c4470
_d4470