000 00306nam a2200121Ia 4500
008 211209s1973 xx 000 0 und d
041 _aeng
082 _a621.319 N73 BRO
100 _aBROWN R G
245 _aLINES, WAVES, AND ANTENAS
260 _aNEW YORK
_bTHE RONALD PRESS COMPANY
_c1973
300 _a484
999 _c18471
_d18471