Lua APA (7ú heag.)
Hart, H. L. A. (2012). The concept of law (3rd ed.). Oxford University Press.
Lua i Stíl Chicago (17ú heag.)
Hart, H. L. A. The Concept of Law. 3rd ed. Oxford, United Kingdom: Oxford University Press, 2012.
Lua MLA (9ú heag.)
Hart, H. L. A. The Concept of Law. 3rd ed. Oxford University Press, 2012.
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