000 00423nam a22001457a 4500
003 BD-DhUL
005 20140924112554.0
008 140924s1920 xxua|||| |||| 001 0 eng d
040 _aBD-DhUL
_cBD-DhUL
082 _a537.53
_bBIT
100 1 _aBijl, H. J. Van Der .
245 1 4 _aThe thermionic vacuum tube and its applications /
_cby H. J. Van Der Bijl.
260 _aNew York :
_bMcGraw-Hill Book,
_c1920.
942 _2ddc
_cBK
999 _c12692
_d12692