Columbia subject headings:
Harvard subject headings:
Forced labor--Balkan Peninsula--History--20th century--Congresses.
Forced labor--Europe, Eastern--History--20th century--Congresses.
Holocaust, Jewish (1939-1945)
World War, 1939-1945--Conscript labor--Balkan Peninsula--Congresses.
World War, 1939-1945--Conscript labor--Europe, Eastern--Congresses.
Princeton subject headings:
Forced labor--Balkan Peninsula--History--20th century--Congresses.
Forced labor--Europe, Eastern--History--20th century--Congresses.
Holocaust, Jewish (1939-1945)
World War, 1939-1945--Conscript labor--Balkan Peninsula--Congresses.
World War, 1939-1945--Conscript labor--Europe, Eastern--Congresses.