000 00293nam a2200109Ia 45e0
008 181001s1969 xx 000 0 und d
100 _aSharma S.S.
245 0 _aAdv. Practical physics
260 _aAgra
_bRatan prak.
_c1969
300 _a269
942 _2ddc
_cBK
999 _c1682
_d1682