Dirac, P. A. M. (2001). General theory of relativity. Prentice-Hall.
Cita Chicago (17th ed.)Dirac, P. A. M. General Theory of Relativity. New Delhi: Prentice-Hall, 2001.
Cita MLA (9th ed.)Dirac, P. A. M. General Theory of Relativity. Prentice-Hall, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.