000 002900000a22001330004500
245 _aElectromagnetic theory
100 _aDavies, J.B.
100 _aRadley, D.E.
260 _aEdinbourgh
_bOliver & Boyd
_c1969
300 _a189 p.
080 _a538.3
_bD3
041 _aEN
942 _cBK
999 _c93498
_d93498