Cofnodi Dyfyniadau
Dyfyniad APA
(1760). Tractatus Astronomicus, et Geometricus.
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Dyfyniad Arddull Chicago
Tractatus Astronomicus, Et Geometricus. 1760.
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Dyfyniad MLA
Tractatus Astronomicus, Et Geometricus. 1760.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.