Columbia subject headings:
Freedom of the seas.
International law.
Maritime law.
War (International law)
Harvard subject headings:
Cocceji, Heinrich von, 1644-1719. Grotius illustratus.
Freedom of the seas.
Grotius, Hugo, 1583-1645. De jure belli ac pacis libri tres.
International law.
International relations
Maritime law.
War (International law)
Princeton subject headings: