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Dyfyniad Arddull ChicagoKolvenbach, Walter. Employee Councils in European Companies. Germany: Kluwer, 1978.
Dyfyniad MLAKolvenbach, Walter. Employee Councils in European Companies. Kluwer, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.