HART, H. (1972). The Concept Of Law H.l.a. Hart. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)HART, H.L.A. The Concept Of Law H.l.a. Hart. Oxford University Press, 1972.
Lua MLA (8ú heag.)HART, H.L.A. The Concept Of Law H.l.a. Hart. Oxford University Press, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.