00315nam a2200121Ia 4500008004100000020000900041082002100050100004000071245004600111260001900157260000900176300000800185150723s9999    xx            000 0 und d  a2187  a 621.3133  ROS-D  a Rosenblatt, Jack; Friedman, Harold  a Direct and alternating current machinery  b CBS,New Delhi  c2001  a553