APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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