Hla hart the concept of law oup 1961 2nd edn 1994 July 8, 2019 16 32 64 128 Hart theory of law Hla hart the concept of law (oup 2012) Hla hart the concept of law (3rd edn oup 2012) H.l.a. hart (1964). the concept of law 2nd edition. oxford oxford university press 1994 pp. 208-212 Hla hart the concept of law
