000 00272nam a2200121Ia 4500
008 220201s1969 xx 000 0 eng d
082 _a621.316
100 _aDavies, JB & Radley, DE
245 0 _aElectromagnetic theory
260 _c1969
300 _a189
942 _2ddc
999 _c75912
_d75912