Columbia subject headings:
Harvard subject headings:
Presidents--Turkey.
Prime ministers--Turkey.
Turkey--Foreign relations--1960-1980.
Turkey--Foreign relations--1980-
Turkey--Politics and government--1960-1980.
Turkey--Politics and government--1980-
Princeton subject headings:
Presidents--Turkey.
Prime ministers--Turkey.
Turkey--Foreign relations--20th century.
Turkey--Politics and government--20th century.