000 00278nam a2200121Ia 4500
008 220201s1998 xx 000 0 eng d
082 _a530
_bKUM
100 _aKumar,S S
245 0 _aApplied physics
260 _aDelhi
_bTata Mcgraw hill
_c1998
300 _aUn-9
942 _2ddc
999 _c35519
_d35519