00277nam a2200109Ia 4500008004100000041000800041082001200049100001300061245004300074260004200117300000800159211209s9999    xx            000 0 und d  aeng  aMOR/HUG  aMORLEY A  aPRINCIPLES OF ELECTRICITY IN SI UNITS   aLONDONbENGLISH LANGUAGE BOOK SOCIETY  a399