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Dyfyniad Arddull ChicagoWaal, Henri van de. Forgery As a Stylistic Problem. The Hague: Nijhoff, 1963.
Dyfyniad MLAWaal, Henri van de. Forgery As a Stylistic Problem. The Hague: Nijhoff, 1963.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.