Columbia subject headings:
Harvard subject headings:
Balkan Peninsula--Foreign relations.
Balkan Peninsula--History--20th century.
Cyprus--Foreign relations.
Cyprus--History--20th century.
Greece--Foreign relations.
Greece--History--20th century.
Middle East--Foreign relations.
Middle East--History--20th century.
Princeton subject headings:
Cyprus--Foreign relations.
Cyprus--History--20th century.
Greece--Foreign relations.
Greece--History--20th century.