Columbia subject headings:
Hart, H. L. A. (Herbert Lionel Adolphus), 1907-1992.
Jurisprudence.
Law--Philosophy.
Harvard subject headings:
Hart, H. L. A. (Herbert Lionel Adolphus), 1907-1992.
Jurisprudence
Law--Philosophy
Princeton subject headings:
Hart, H. L. A. (Herbert Lionel Adolphus), 1907-1992.
Jurisprudence.
Law (Philosophical concept)