Cita APA (7th ed.)

Hart, H. L. A. (2020). Concept of law (3rd.). Oxford University Press.

Cita Chicago (17th ed.)

Hart, H. L. A. Concept of Law. 3rd. UK: Oxford University Press, 2020.

Cita MLA (9th ed.)

Hart, H. L. A. Concept of Law. 3rd. Oxford University Press, 2020.