Columbia subject headings:
Athens (Greece)--Antiquities, Roman--Congresses.
Athens (Greece)--Civilization--Congresses.
Athens (Greece)--Social conditions--Congresses.
Greece--Antiquities, Roman--Congresses.
Romans--Greece--Athens--Congresses.
Harvard subject headings:
Athens (Greece)--Antiquities, Roman--Congresses.
Athens (Greece)--Civilization--Congresses.
Athens (Greece)--Social conditions--Congresses.
Greece--Antiquities, Roman--Congresses.
Romans--Greece--Athens--Congresses.
Princeton subject headings:
Athens (Greece)--Antiquities, Roman--Congresses.
Athens (Greece)--Civilization--Congresses.
Athens (Greece)--Social conditions--Congresses.
Greece--Antiquities, Roman--Congresses.
Romans--Greece--Athens--Congresses.