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