Deutsch, D. (2012). The Beginning of Infinity. Penguin Books.
Cita Chicago (17th ed.)Deutsch, David. The Beginning of Infinity. London: Penguin Books, 2012.
Cita MLA (9th ed.)Deutsch, David. The Beginning of Infinity. Penguin Books, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.