000 00239nam a22001097a 4500
003 OSt
245 _aSamajik Avam Parivarik Samasyan
250 _a3rd ed.
260 _aAgra
_bAgarwal Publication
_c2015
300 _a128p.
942 _2ddc
_cBK
999 _c4649
_d4649