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