Columbia subject headings:
Greece--History--Civil War, 1944-1949--Congresses.
World War, 1939-1945--Underground movements--Greece--Congresses.
Harvard subject headings:
Greece--History--Civil War, 1944-1949--Congresses.
World War, 1939-1945--Underground movements--Greece--Congresses.
Princeton subject headings:
Greece--History--Civil War, 1944-1949.
Greece--History--Occupation, 1941-1944.
World War, 1939-1945--Greece.
World War, 1939-1945--Underground movements--Greece.