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Dyfyniad Arddull ChicagoHiam, Alexander. Closing The Quality Gap Lessons From America's Leading Companies Alexander Hiam. Prentice-Hall, 1992.
Dyfyniad MLAHiam, Alexander. Closing The Quality Gap Lessons From America's Leading Companies Alexander Hiam. Prentice-Hall, 1992.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.