000 00286nam a2200121Ia 4500
008 160710s1958 xx 000 0 und d
082 _a621.38133 SEE
100 _aSEELY,S.
245 _aELECTRONTUBE CIRCUITS
260 _bMCGRAW HILL BOOK CO
_c1958
300 _a695
942 _2ddc
_cB
999 _c51987
_d51987