Y gwahaniaeth rhwng diwygiadau o "Gerallt Gymro"
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(→beans: Hdjd) Tagiau: Golygiad drwy declyn symudol Golygiad ar declun symudol |
(→hello plasmawr: Hdhd) Tagiau: Golygiad drwy declyn symudol Golygiad ar declun symudol |
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*Michael Richter, ''Giraldus Cambriensis and the Growth of the Welsh Nation'' (1972)
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*''[[Y Disgrifiad o Gymru]]''
*''[[Hanes y Daith Trwy Gymru]]''
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