Columbia subject headings:
Harvard subject headings:
Forced labor--Germany--Bielefeld--History--20th century.
Foreign workers--Germany--Bielefeld--History--20th century.
World War, 1939-1945--Conscript labor--Germany--Bielefeld.
Princeton subject headings:
Forced labor--Germany--Bielefeld--History--20th century.
Foreign workers--Germany--Bielefeld--History--20th century.
World War, 1939-1945--Conscript labor--Germany--Bielefeld.