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Dyfyniad Arddull ChicagoGuasch, J. Luis. Quality Systems and Standards for a Competitive Edge. Washington, DC: The World Bank, 2007.
Dyfyniad MLAGuasch, J. Luis. Quality Systems and Standards for a Competitive Edge. The World Bank, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.