Columbia subject headings:
Harvard subject headings:
Boundaries--Congresses.
Civilization, Ancient--Congresses
Civilization, Classical--Influence--Congresses.
Classical antiquities--Congresses.
Cross-cultural studies--Congresses.
Europe--Civilization--Classical influences--Congresses.
Princeton subject headings:
Boundaries--Congresses.
Civilization, Ancient--Congresses.
Civilization, Classical--Influence--Congresses.
Classical antiquities--Congresses.
Cross-cultural studies--Congresses.
Europe--Civilization--Classical influences--Congresses.