APA (7th ed.) Citation

Cunningham, E. (1914). The principle of relativity. Univ. Press.

Chicago Style (17th ed.) Citation

Cunningham, Ebenezer. The Principle of Relativity. Cambridge: Univ. Press, 1914.

MLA (9th ed.) Citation

Cunningham, Ebenezer. The Principle of Relativity. Univ. Press, 1914.

Warning: These citations may not always be 100% accurate.