000 00326nam a2200121Ia 4500
005 20251007104213.0
008 251006s9999 xx 000 0 und d
100 _akleen,warner j.
245 0 _a.electronies of mierowave tubes lindsay,p.a. (jt auther)
260 _a1st ed. | .N.Y. Aeademie P.
260 _c1958
942 _cBOK
999 _c2254
_d2254