000 00296pam a2200121a 44500
082 _a621.3815
_bM589e
100 _aMikolajczyk, Piotr
245 1 _aELECTRONIC TUBES AND SEMICONDUCTOR ELEMENTS
260 _aN. Y.
_bPergamon Press
_c1960
300 _a1212
964 _gCIRC
997 _a8176 C
999 _c442399
_d442399