APA (7th ed.) Citation

Carmichael, R. D. (1920). The theory of relativity (2d ed.). J. Wiley.

Chicago Style (17th ed.) Citation

Carmichael, R. D. The Theory of Relativity. 2d ed. New York: J. Wiley, 1920.

MLA (8th ed.) Citation

Carmichael, R. D. The Theory of Relativity. 2d ed. J. Wiley, 1920.