000 00293nam a2200121Ia 4500
005 20240713150735.0
008 240712s9999 xx 000 0 und d
041 _aeng
100 _aBhatnagar, a.b.
245 _aVigyan-shikshan shastra
260 _aMerath
_b R.Lal book
_c2016
300 _a455
999 _c30938
_d30938