000 00323pam a2200145a 44500
082 _a537.5
_bA129p
100 _aAlfrey, Grahame F.
245 1 _aPHYSICAL ELECTRONICS
260 _aLondon
_bVan Nostrand
_c1964
300 _a220
650 _aElectrons
650 _aElectronics
964 _gCIRC
997 _a55576 C
999 _c430907
_d430907