000 003170000a22001330004500
245 _aElectromagnatic fields : sources and media
100 _aPortis, Alan M.
260 _aNew York
_bWiley
_c1978
300 _axxiii, 775p. : ill.
020 _a0471019062
080 _a538
_bP6
041 _aEN
942 _cBK
999 _c110678
_d110678