000 00253nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aTyagi, M.P.Singh
245 0 _aShikshan Thakniki
260 _aAgra
_bHaprabha
_c2006
300 _a280p.
942 _cBK
999 _c11704
_d11704