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