000 00291nam a2200121Ia 4500
008 220201s1961 xx 000 0 eng d
082 _bWIT
100 _aWitts, alfred T.
245 0 _aSuper Hetero dyne Receiver
260 _aLondon
_bSir Issac pitman
_c1961
300 _a203
942 _2ddc
999 _c14913
_d14913