Cofnodi Dyfyniadau
Dyfyniad APA
[Declaração de Francisco Vicente da Cruz Viana].
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Dyfyniad Arddull Chicago
[Declaração De Francisco Vicente Da Cruz Viana].
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Dyfyniad MLA
[Declaração De Francisco Vicente Da Cruz Viana].
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.