Columbia subject headings:
Freedom of the seas--Early works to 1800.
International law--Early works to 1800.
Law of the sea--Early works to 1800.
Maritime law--Early works to 1800.
Natural law--Early works to 1800.
War (International law)--Early works to 1800.
Harvard subject headings:
Freedom of the seas.
International law.
Maritime law.
War (International law)
Princeton subject headings: