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Dyfyniad Arddull ChicagoRashford, Nicholas S. The Dynamicsof Organisational Levels. Massacbusetts: Addison-wesley Longman, 1994.
Dyfyniad MLARashford, Nicholas S. The Dynamicsof Organisational Levels. Addison-wesley Longman, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.