Columbia subject headings:
Harvard subject headings:
German language--Study and teaching--Foreign speakers--Congresses.
German language--Study and teaching--Turkey--Congresses.
Germany--Cultural policy--Congresses
Germany--Foreign relations--Treaties--Congresses.
Germany--Relations--Turkey--Congresses.
Turkey--Cultural policy--Congresses.
Turkey--Foreign relations--Treaties--Congresses.
Turkey--Relations--Germany--Congresses.
Princeton subject headings:
Cultural relations--Congresses.
German language--Study and teaching--Turkey--Congresses.
Germany--Cultural policy--History--20th century--Congresses.
Germany--Foreign relations--Treaties--Congresses.
Germany--Relations--Turkey--Congresses.
Turkey--Cultural policy--History--20th century--Congresses.
Turkey--Foreign relations--Treaties--Congresses.
Turkey--Relations--Germany--Congresses.