Columbia subject headings:
Forced labor--Germany--History--20th century.
World War, 1939-1945--Conscript labor--Europe, Eastern.
World War, 1939-1945--Conscript labor--Germany.
World War, 1939-1945--Prisoners and prisons, German.
Harvard subject headings:
Forced labor--Europe--History--20th century.
Forced labor--Germany--History--20th century
World War, 1939-1945--Conscript labor--Europe.
World War, 1939-1945--Conscript labor--Germany.
Princeton subject headings:
Forced labor--Europe--History--20th century.
Forced labor--Germany--History--20th century.
World War, 1939-1945--Conscript labor--Europe.
World War, 1939-1945--Conscript labor--Germany.