000 00299nam a2200121Ia 4500
008 220201s1969 xx 000 0 eng d
082 _bBOG
100 _aBogoroditskii, L P. etc.
245 0 _aRadio and Electronic materials
260 _aLondon
_bIlifec books
_c1969
300 _a350
942 _2ddc
999 _c16264
_d16264