000 00268nam a22001217a 4500
082 _a621.382 BOL'W
100 _aBOLTZ, C. L
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245 _aWIRELESS FOR BEGINNERS
250 _a5TH
260 _aLONDON
_bGEORGE G. HARRAP
_c1964
300 _a232P
942 _cBK
999 _c566960
_d566960