000 00389nam a2200169Ia 4500
008 180424s9999 xx 000 0 und d
084 _a530 A12
100 _a"Arora, C L"
245 0 _aB Sc Practical Physics
250 _a\\197715ENGGPCX
260 _aS Chand
260 _b1977
260 _cDelhi
300 _axi+470p
500 _aincludes index and biblioraphy
942 _cBK
999 _c35818
_d35818