Einstein, A. (2006). Meaning of Relativity (1st.). New Age International.
Cita Chicago (17th ed.)Einstein, Albert. Meaning of Relativity. 1st. New Age International, 2006.
Cita MLA (9th ed.)Einstein, Albert. Meaning of Relativity. 1st. New Age International, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.