00414cam a22001694a 4500003001000000005001700010008004100027040002500068041000800093044000800101080001000109100001500119245003600134260003100170650002400201655001900225AR-SsjUIB20250710155200.0250429s1967    xxk           000 0 eng d  aAR-SsjUIBcAR-SsjUIB0 aeng  axxk  a621.31 aCotton, H.10aAdvanced electrical technology.  aLondon :bI.Pitman,c1967. 7aElectrotecnia2lemb 7aLibro2unescot