Columbia subject headings:
Harvard subject headings:
Forced labor--Germany--Berlin--History--20th century.
Lichtenberg (Berlin, Germany)--History--20th century.
World War, 1939-1945--Conscript labor--Germany--Berlin.
Princeton subject headings:
Forced labor--Germany--Berlin--History--20th century.
Lichtenberg (Berlin, Germany)--History--20th century.
World War, 1939-1945--Conscript labor--Germany--Berlin.