Cofnodi Dyfyniadau
Dyfyniad APA
(1918). [Sidónio Pais]. s.n.
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Dyfyniad Arddull Chicago
[Sidónio Pais]. s.n, 1918.
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Dyfyniad MLA
[Sidónio Pais]. s.n, 1918.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.