Columbia subject headings:
History, Ancient--Congresses.
Mediterranean Region--History, Naval--Congresses.
Harvard subject headings:
Excavations (Archaeology)--Mediterranean Region--Congresses
History, Ancient--Congresses
Mediterranean Region--Antiquities--Congresses.
Mediterranean Region--Civilization--Congresses.
Mediterranean Region--History, Naval--Congresses.
Seafaring life--Mediterranean Region--Congresses.
Princeton subject headings:
Mediterranean Region--Antiquities--Congresses.
Mediterranean Region--Civilization--Congresses.
Seafaring life--Mediterranean Region--Congresses.