Columbia subject headings:
Harvard subject headings:
Engineers--Germany--Biography--Exhibitions.
Foreign workers--Germany--Biography--Exhibitions.
Germany--Emigration and immigration--Social aspects--Exhibitions.
Immigrants--Germany--Social conditions--20th century--Exhibitions.
Industrial technicians--Germany--Biography--Exhibitions.
Turkey--Emigration and immigration--Social aspects--Exhibitions.
Turks--Employment--Germany--Exhibitions.
Turks--Germany--Biography--Exhibitions.
Turks--Germany--Social conditions--20th century--Exhibitions.
Princeton subject headings:
Engineers--Germany--Biography--Exhibitions.
Foreign workers--Germany--Biography--Exhibitions.
Germany--Emigration and immigration--Social aspects--Exhibitions.
Immigrants--Germany--Social conditions--20th century--Exhibitions.
Industrial technicians--Germany--Biography--Exhibitions.
Turkey--Emigration and immigration--Social aspects--Exhibitions.
Turks--Employment--Germany--Exhibitions.
Turks--Germany--Biography--Exhibitions.
Turks--Germany--Social conditions--20th century--Exhibitions.