000 00412nam a2200145Ia 4500
008 180713s9999 xx 000 0 und d
082 _a530.P S7
100 _a"Harnam Singh, "
245 0 _aBSC Practical Physics
260 _aDelhi
260 _b S Chand
260 _c1970
365 _b100
942 _cBK
999 _c115527
_d115527