000 00265nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aBakshi, N.S.
245 0 _aSamajik Vighyan Shikshan
260 _aDelhi
_bPrerna Prakashan
_c2007
300 _a215p.
942 _cBK
999 _c13476
_d13476