000 00266nam a2200109Ia 4500
008 160921s9999 xx 000 0 und d
100 _aBHATNAGAR,R.P.
245 _aSHIKSHA & MANOVIGYAN MEN NIRDESHAN&PARAMARSH
260 _bR.LAL PUB.
300 _a252
942 _cBK
999 _c31858
_d31858