000 00258nam a2200109Ia 4500
008 230125s9999 xx 000 0 und d
100 _aBHATNAGAR A.B
_914560
245 0 _aBHOTIK VIGYAN SHIKSHAN
260 _bSURYA PUB.
_c2009
300 _a410
942 _cBK
999 _c110581
_d110581