000 00297nam a2200121Ia 4500
008 220201s1971 xx 000 0 eng d
041 _aENG
100 _aKETT, P W
245 0 _aMAGNETRON OSCILLATOR
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1971
300 _a63
942 _2ddc
999 _c44608
_d44608