Style de citation APA (7e éd.)

Hart, H. L. A. (1961). The concept of law (2nd ed.). Oxford university press.

Style de citation Chicago (17e éd.)

Hart, H. L. A. The Concept of Law. 2nd ed. Oxford: Oxford university press, 1961.

Style de citation MLA (9e éd.)

Hart, H. L. A. The Concept of Law. 2nd ed. Oxford university press, 1961.