Columbia subject headings:
Austria--History--19th century.
Austria--Politics and government--19th century.
Habsburg, House of.
Imperialism--History--19th century.
Harvard subject headings:
Austria--History--19th century.
Austria--Politics and government--19th century.
Austria--Politics and government.
Austria--Relations--Balkan Peninsula.
Balkan Peninsula--Relations--Austria.
Habsburg, House of.
Imperialism--History--19th century
Princeton subject headings:
Austria--Politics and government.
Austria--Relations--Balkan Peninsula.
Balkan Peninsula--Relations--Austria.