Columbia subject headings:
Bulgaria--Foreign relations--1990-
Bulgaria--Foreign relations--Europe.
Europe--Foreign relations--Bulgaria.
Harvard subject headings:
Bulgaria--Intellectual life.
Bulgaria--Politics and government--1990-
Bulgaria--Relations--Europe.
Bulgaria--Social policy.
Europe--Foreign public opinion, Bulgarian.
Europe--Relations--Bulgaria.
National characteristics, Bulgarian.
Nationalism--Bulgaria--History.
Political culture--Bulgaria--History.
Social change--Bulgaria--History.
Princeton subject headings:
Bulgaria--Intellectual life.
Bulgaria--Politics and government--1990-
Bulgaria--Relations--Europe.
Bulgaria--Social policy.
Europe--Foreign public opinion, Bulgarian.
Europe--Relations--Bulgaria.
National characteristics, Bulgarian.
Nationalism--Bulgaria--History.
Political culture--Bulgaria--History.
Social change--Bulgaria--History.