000 00269nam a2200109Ia 4500
008 190829s9999||||xx |||||||||||||| ||und||
100 _aEttinger, George .M
245 0 _aMagnetic Amplifiers
260 _bMethuen And Co.
_aLondon
_c1957
650 _aMagnetism
942 _cBK
999 _c7357
_d7357