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Dyfyniad Arddull ChicagoPickett, K. H. Spencer. The Essential Guide to Internal Auditing. 2nd ed. Chichester, West Sussex: Wiley, 2011.
Dyfyniad MLAPickett, K. H. Spencer. The Essential Guide to Internal Auditing. 2nd ed. Wiley, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.