Cofnodi Dyfyniadau
Dyfyniad APA
Apontados de algumas deuossoins.
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Dyfyniad Arddull Chicago
Apontados De Algumas Deuossoins.
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Dyfyniad MLA
Apontados De Algumas Deuossoins.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.