000 00347nam a2200133Ia 4500
008 211215s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aPierce, J R
245 0 _aTraeling-wave tubes
260 _bD Van Nonstand Co.
_aToronto
_c1950
300 _aviii, 260 p.
653 _aEngineering
942 _c1
999 _c43559
_d43559