Cita APA (7th ed.)
Zdornykh, A. (1987). What is the theory of relativity? Mir Pub.
Cita Chicago (17th ed.)
Zdornykh, A. What Is the Theory of Relativity? Moscow: Mir Pub, 1987.
Cita MLA (9th ed.)
Zdornykh, A. What Is the Theory of Relativity? Mir Pub, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.