Columbia subject headings:
Harvard subject headings:
Forced labor--Czech Republic--History--20th century.
Labor policy--Germany--History--20th century.
World War, 1939-1945--Concentration camps--Czech Republic.
World War, 1939-1945--Conscript labor--Czech Republic.
World War, 1939-1945--Prisoners and prisons, German.
Princeton subject headings:
Forced labor--Czech Republic--History--20th century.
Labor policy--Germany--History--20th century.
World War, 1939-1945--Concentration camps--Czech Republic.
World War, 1939-1945--Conscript labor--Czech Republic.
World War, 1939-1945--Prisoners and prisons, German.