Cita APA (7th ed.)

Hart, H. L. A. (2012). The concept of law (3rd ed.). Oxford University Press.

Cita Chicago (17th ed.)

Hart, H. L. A. The Concept of Law. 3rd ed. Oxford, United Kingdom: Oxford University Press, 2012.

Cita MLA (9th ed.)

Hart, H. L. A. The Concept of Law. 3rd ed. Oxford University Press, 2012.