Columbia subject headings:
Harvard subject headings:
Foreign workers, Turkish--Germany.
Germany--Emigration and immigration--Government policy.
Social integration--Germany.
Turkey--Emigration and immigration.
Turks--Germany--Social conditions
Princeton subject headings:
Foreign workers, Turkish--Germany.
Germany--Emigration and immigration--Government policy.
Social integration--Germany.
Turkey--Emigration and immigration.
Turks--Germany--Social conditions.