00415nam a2200157 a 45000010005000000030009000050080041000140400028000550820015000831000018000982450039001162600035001553000014001904900031002046500022002351264CO-ViMGA141112s2004 ck r 000 u spa d aCO-ViMGAbspacCO-ViMGA04a537.6 R43c1 aRieger, Heinz10aCorriente alterna / cHeinz Rieger aBarcelona : bMarcombo, c1987 a79 p : il aEnseñanza programada, 1214aCORRIENTE ALTERNA