Columbia subject headings:
Greece--History--1917-1944.
Macedonia--History--1912-1945.
World War, 1939-1945--Underground movements--Greece.
World War, 1939-1945--Underground movements--Macedonia.
Harvard subject headings:
Greece--History--1917-1944.
Macedonia--History--1912-1945.
World War, 1939-1945--Underground movements--Greece.
World War, 1939-1945--Underground movements--Macedonia.
Princeton subject headings:
Greece--History--1917-1944.
Macedonia--History--1912-1945.
World War, 1939-1945--Underground movements--Greece.
World War, 1939-1945--Underground movements--Macedonia.