000 002730000a22001210004500
245 _aElectronics in everyday things
100 _aVegara, W.C.
260 _aNew York
_bHarper & Row
_c1961
300 _a235 p., ill.
080 _a621.38
_bV4
041 _aEN
942 _cBK
999 _c94705
_d94705