00251nam a2200121Ia 4500100001500000650002700015654001300042245001300055260002700068082001500095300000700110546001200117  aModule D4   aElectrical Engineering  aSpinning  aSpinning  bE.I.T.BaEnglandc1980  a621.8bITB  a84  aENGLISH