Columbia subject headings:
Mediterranean Region--Civilization--Congresses.
Mediterranean Region--Ethnic relations--Congresses.
Mediterranean Region--Religion--Congresses.
Pacifism--Mediterranean Region--Congresses.
Religions--Relations--Congresses.
Harvard subject headings:
Mediterranean Region--Civilization--21st century--Congresses.
Mediterranean Region--Ethnic relations--Congresses.
Mediterranean Region--Religion--Congresses.
Pacifism--Mediterranean Region--Congresses.
Religions--Relations--Congresses
Princeton subject headings: