Qadir, A. (1989). Relativity: An introduction to the special theory. World Scientific.
Cita Chicago (17th ed.)Qadir, Asghar. Relativity: An Introduction to the Special Theory. Singapur: World Scientific, 1989.
Cita MLA (9th ed.)Qadir, Asghar. Relativity: An Introduction to the Special Theory. World Scientific, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.