Penrose, R. (1999). The emperor's new mind: Concerning computers, minds, and the laws of physics. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Penrose, Roger. The Emperor's New Mind: Concerning Computers, Minds, and the Laws of Physics. New York, N.Y., U.S.A. ;New Delhi: Oxford University Press, 1999.
Lua MLA (8ú heag.)Penrose, Roger. The Emperor's New Mind: Concerning Computers, Minds, and the Laws of Physics. Oxford University Press, 1999.
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