000 00264nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aYadav, D.S.
245 0 _aShikshan Thakniki Ke Mul Thathva
260 _aNew Delhi
_bNeha
_c2007
300 _a264p.
942 _cBK
999 _c11955
_d11955