Cofnodi Dyfyniadau
Dyfyniad APA
(17). Trac[ta]tus Pro Additamentis ad Log[ic]am.
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Dyfyniad Arddull Chicago
Trac[ta]tus Pro Additamentis Ad Log[ic]am. 17.
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Dyfyniad MLA
Trac[ta]tus Pro Additamentis Ad Log[ic]am. 17.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.