Columbia subject headings:
Belgium--Foreign relations--Turkey.
Turkey--Foreign relations--Belgium.
Turkey--History--Revolution, 1918-1923--Diplomatic history.
Harvard subject headings:
Belgium--Foreign relations--Turkey.
Turkey--Foreign relations--Belgium.
Turkey--History--Revolution, 1918-1923--Diplomatic history.
Princeton subject headings:
Belgium--Foreign relations--Turkey--Sources.
Turkey--Foreign relations--Belgium--Sources.
Turkey--History--Revolution, 1918-1923--Sources.
Turkey--History--Revolution, 1918-1923.