Cofnodi Dyfyniadau
Dyfyniad APA
Bettencourt Emiliano Augusto de. (1864). Carta da rede telegraphica de Portugal. Dir. Geral dos Telegraphos do Reino.
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Dyfyniad Arddull Chicago
Bettencourt Emiliano Augusto de. Carta Da Rede Telegraphica De Portugal. Dir. Geral dos Telegraphos do Reino, 1864.
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Dyfyniad MLA
Bettencourt Emiliano Augusto de. Carta Da Rede Telegraphica De Portugal. Dir. Geral dos Telegraphos do Reino, 1864.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.