00310nam a2200121Ia 4500008004100000041001200041082001100053100002000064245006400084260002500148300000800173650000700181221030s9999    xx            000 0 und d  aEnglish  a105.23  aA. S. Langsdorf 0aTheory of Alternating Current Machinerycby A. S. Langsdorf  bTMHaNew Delhic1974  a666  aEE