000 00399nam a2200181Ia 4500
008 210210b1932 xxu||||| |||| 00| 0 eng d
041 _aeng
082 _a535/38
100 _aGHIRARDI (Alfred A)
245 _aRadio physics course
260 _aNew York
_b-
_c1932
300 _a972
650 _aRadio
650 _aphysics
650 _acourse
690 _aElectricity
906 _a008656
999 _c126459
_d126459