000 00427nam a2200181Ia 4500
008 180424s9999 xx 000 0 und d
020 _a8121904692
084 _a530 S58
100 _a"Singh, Harnam"
245 0 _aB.Sc.Practical Physics
250 _a\\201100ENGGPSX
260 _aS Chand
260 _b2011
260 _cNew Delhi
300 _a1008p.
500 _aincludes index and biblioraphy
942 _cBK
999 _c105090
_d105090