00269nam a2200121Ia 4500100001600000650002700016654002100043245002100064260002700085082001500112300000800127546001200135  aModule H21   aElectrical Engineering  aPress Toolmaking  aPress Toolmaking  bE.I.T.BaEnglandc1981  a621.9bITB  a143  aENGLISH