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Dyfyniad Arddull ChicagoRoyle, Trevor. Companion to Scottish Literature. Detroit: Gale Research, 1983.
Dyfyniad MLARoyle, Trevor. Companion to Scottish Literature. Gale Research, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.