Cofnodi Dyfyniadau
Dyfyniad APA
Portugal Instituto Geográfico e Cadastral. (1988). Carta de Portugal. I.G.C.
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Dyfyniad Arddull Chicago
Portugal Instituto Geográfico e Cadastral. Carta De Portugal. I.G.C, 1988.
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Dyfyniad MLA
Portugal Instituto Geográfico e Cadastral. Carta De Portugal. I.G.C, 1988.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.