000 00305pam a2200133a 44500
082 _a621.384
_bD255s
100 _aDate, William Henry
245 1 _aSECOND YEAR RADIO TECHNOLOGY
260 _aLondon
_bLongmans, Green
_c1947
300 _a222
650 _aRadio
964 _gCIRC
997 _a3573 s C
999 _c436160
_d436160