000 00262nam a2200109Ia 4500
008 160921s9999 xx 000 0 und d
100 _aBHATNAGAR,A.B.
245 _aPHYSICAL SCIENCE SHIKSHAN
260 _bMERUT: R.LAL PUSTAK
_c2013
300 _a530
942 _cBK
999 _c31433
_d31433