APA (7th ed.) Citation

Keeton, G. W. (1930). The elementary principles of jurisprudence. A. & C. Black.

Chicago Style (17th ed.) Citation

Keeton, George W. The Elementary Principles of Jurisprudence. London: A. & C. Black, 1930.

MLA (9th ed.) Citation

Keeton, George W. The Elementary Principles of Jurisprudence. A. & C. Black, 1930.