Cofnodi Dyfyniadau
Dyfyniad APA
Zbyszewski Georges & Carvalhosa A. Barros e. (1984). Carta geológica de Portugal na escala de 1: 50 000. Serviços Geológicos de Portugal.
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Dyfyniad Arddull Chicago
Zbyszewski Georges and Carvalhosa A. Barros e. Carta Geológica De Portugal Na Escala De 1: 50 000. Serviços Geológicos de Portugal, 1984.
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Dyfyniad MLA
Zbyszewski Georges and Carvalhosa A. Barros e. Carta Geológica De Portugal Na Escala De 1: 50 000. Serviços Geológicos de Portugal, 1984.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.