Columbia subject headings:
Germany--Emigration and immigration--20th century.
Germany--Ethnic relations--20th century.
Germany--Foreign relations--Turkey--20th century.
Turkey--Emigration and immigration--20th century.
Turkey--Foreign relations--Germany--20th century.
Turks--Germany--20th century.
Harvard subject headings:
Germany--Emigration and immigration--20th century.
Germany--Ethnic relations--20th century.
Germany--Foreign relations--Turkey--20th century.
Turkey--Emigration and immigration--20th century.
Turkey--Foreign relations--Germany--20th century.
Turks--Germany--20th century.
Princeton subject headings:
Germany--Emigration and immigration--20th century.
Germany--Ethnic relations--20th century.
Germany--Foreign relations--Turkey--20th century.
Turkey--Emigration and immigration--20th century.
Turkey--Foreign relations--Germany--20th century.
Turks--Germany--20th century.