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Dyfyniad Arddull ChicagoSHIRREFF DAVID. DEALING WITH FINANCIAL RISK. LONDON: PROFILE BOOKS, 2005.
Dyfyniad MLASHIRREFF DAVID. DEALING WITH FINANCIAL RISK. PROFILE BOOKS, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.