000 00299nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a537.5 A3924
100 _aALFREY,G.F
245 0 _aPHYSICAL ELECTRONICS
260 _aLONDON
_bVan Nostrand Reinhold
_c1964
300 _a23X16
942 _cBK
_2DDC
999 _c12058
_d12058