000 00290nam a2200121Ia 4500
008 220201s1992 xx 000 0 eng d
082 _a530
100 _aCharta, CC & Kultar Singh
245 0 _aApplied physics
260 _bDelhi :S.k Kataria & Sons
_c1992
300 _a350
942 _2ddc
999 _c84868
_d84868