00250nam a2200109Ia 4500008004100000041001200041082001100053100001700064245004700081260000600128650000600134221030s9999    xx            000 0 und d  aEnglish  a105.23  aK. K. Tiwari 0aElectricity and Magnetismcby K. K. Tiwari  c0  aB