000 00253nam a22001217a 4500
003 OSt
100 _aPathak, P D
245 _aShiksha Manovigyan
250 _a6th ed.
260 _aAgra
_bAgarwal Publication
_c2014
300 _a456p.
942 _2ddc
_cBK
999 _c4504
_d4504