00250nam a2200109Ia 4500008004100000041001200041082001100053100001700064245004700081260000600128650000600134221030s9999    xx            000 0 und d  aEnglish  a105.23  aD. L. Sehgal 0aElectricity and Magnetismcby D. L. Sehgal  c0  aB