Columbia subject headings:
Harvard subject headings:
France--Civilization--German influences--Congresses.
France--Relations--Germany--Congresses.
Germany--Civilization--French influences--Congresses.
Germany--Relations--France--Congresses.
Princeton subject headings:
France--Civilization--Congresses.
France--Foreign public opinion, German--Congresses.
France--Foreign relations--Germany--Congresses.
France--Relations--Germany--Congresses.
Germany--Civilization--Congresses.
Germany--Foreign public opinion, French.
Germany--Foreign relations--France--Congresses.
Germany--Relations--France--Congresses.