Hofstadter, D. R. Godel, Escher, Bach: An eternal golden braid. Penguin.
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Dyfyniad Arddull Chicago
Hofstadter, Douglas R. Godel, Escher, Bach: An Eternal Golden Braid. Penguin.
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Dyfyniad MLA
Hofstadter, Douglas R. Godel, Escher, Bach: An Eternal Golden Braid. Penguin.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.