APA (7th ed.) Citation

Einstein, A. (1950). The meaning of relativity (3d ed.). Princeton University Press.

Chicago Style (17th ed.) Citation

Einstein, Albert. The Meaning of Relativity. 3d ed. Princeton: Princeton University Press, 1950.

MLA (9th ed.) Citation

Einstein, Albert. The Meaning of Relativity. 3d ed. Princeton University Press, 1950.