Cofnodi Dyfyniadau
Dyfyniad APA
Nepomuceno José Maria & Tinoco Pedro Nunes. Tratado de Prospectiva.
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Dyfyniad Arddull Chicago
Nepomuceno José Maria and Tinoco Pedro Nunes. Tratado De Prospectiva.
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Dyfyniad MLA
Nepomuceno José Maria and Tinoco Pedro Nunes. Tratado De Prospectiva.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.