Columbia subject headings:
Harvard subject headings:
Austria--Anniversaries, etc.--History.
Austria--Languages--Political aspects.
Austria--Politics and government--20th century.
Austrian State Treaty--Anniversaries, etc.--History.
European Union--Membership--History.
Language and culture--Austria.
Nationalism--Austria
Nationalism--Austria--History.
Princeton subject headings:
Austria--Languages--Political aspects.
Austria--Politics and government--20th century.
Language and culture--Austria.
Nationalism--Austria.