APA (7th ed.) Citation

Hart, H. L. A. (1994). The concept of law (2a. ed.). Clarendon Press.

Chicago Style (17th ed.) Citation

Hart, H. L. A. The Concept of Law. 2a. ed. Nueva York: Clarendon Press, 1994.

MLA (9th ed.) Citation

Hart, H. L. A. The Concept of Law. 2a. ed. Clarendon Press, 1994.