Columbia subject headings:
Harvard subject headings:
Greco-Turkish War, 1921-1922--Underground movements--Pontus.
Greeks--History--20th century.
Greeks--Pontus--History--20th century.
Insurgency--History--20th century.
Pontus--History, Military--20th century.
Pontus--History--20th century.
World War, 1914-1918--Underground movements--Pontus.
Princeton subject headings:
Greeks--Pontus--History--20th century.
Insurgency--Pontus--History--20th century.
Pontus--History, Military--20th century.