000 00312nam a2200109Ia 45e0
008 181001s1950 xx 000 0 und d
100 _aJardon E.C.
245 0 _aElectromagnetic waves ------- systems
260 _aDelhi
_bPrentice Hall
_c1950
300 _a284
942 _2ddc
_cBK
999 _c1926
_d1926