Cita APA (7th ed.)
Leoni, B. (1991). Freedom and the law (Expanded 3rd ed.). Liberty Fund.
Cita Chicago (17th ed.)
Leoni, Bruno. Freedom and the Law. Expanded 3rd ed. Indianapolis: Liberty Fund, 1991.
Cita MLA (9th ed.)
Leoni, Bruno. Freedom and the Law. Expanded 3rd ed. Liberty Fund, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.