000 00308nam a2200109Ia 45e0
008 181001s1965 xx 000 0 und d
100 _aHellman C.I.
245 0 _aElements of Radio
260 _aDelhi
_bNostrand Delhi
_c1965
300 _a354
942 _2ddc
_cBK
999 _c823
_d823