Cita APA (7th ed.)

Hart, H. L. A. (2012). The concept of law (Third edition.). Oxford University Press.

Cita Chicago (17th ed.)

Hart, H. L. A. The Concept of Law. Third edition. Oxford: Oxford University Press, 2012.

Cita MLA (8th ed.)

Hart, H. L. A. The Concept of Law. Third edition. Oxford University Press, 2012.