000 00300nam a2200133 4500
008 160616s1962 000 0
245 _aElectromagnetic theory
100 _aHallen, Erik
260 _aNew York
260 _bJohn Wiley
260 _c1962
942 _cBK
_2BK8769
080 _a537.8 HAL
999 _c8769
_d8769