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Dyfyniad Arddull ChicagoHankey, Maurice Pascal Alers Hankey. Politics, Trials and Errors. Oxford: Pen-in-Hand, 1950.
Dyfyniad MLAHankey, Maurice Pascal Alers Hankey. Politics, Trials and Errors. Pen-in-Hand, 1950.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.