Columbia subject headings:
Harvard subject headings:
Balkan Peninsula--Foreign relations--Greece.
Greece--Civilization--20th century.
Greece--Foreign relations--Balkan Peninsula.
Greece--Politics and government--20th century.
Greece--Social conditions--20th century.
Princeton subject headings:
Balkan Peninsula--Foreign relations--20th century.
Balkan Peninsula--Foreign relations--Greece.
Greece--Foreign relations--1974-
Greece--Foreign relations--Balkan Peninsula.