APA (7th ed.) Citation

Kent, J. (1840). Commentaries on American law (4th ed.). The Author.

Chicago Style (17th ed.) Citation

Kent, James. Commentaries on American Law. 4th ed. New York: The Author, 1840.

MLA (9th ed.) Citation

Kent, James. Commentaries on American Law. 4th ed. The Author, 1840.