Harris, J. (1979). Law and legal science: An inquiry into the concepts legal rule and legal system. Clarendon Press.
Lua i Stíl Chicago (17ú heag.)Harris, J.W. Law and Legal Science: An Inquiry into the Concepts Legal Rule and Legal System. Oxford: Clarendon Press, 1979.
Lua MLA (9ú heag.)Harris, J.W. Law and Legal Science: An Inquiry into the Concepts Legal Rule and Legal System. Clarendon Press, 1979.
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