Columbia subject headings:
Railroads and state--Austria--History.
Railroads--Austria--Finance--History--19th century.
Railroads--Austria--History--19th century.
Railroads--Balkan Peninsula--History--19th century.
Railroads--Economic aspects--Balkan Peninsula--History--19th century.
Harvard subject headings:
Railroads and state--Austria--History.
Railroads--Austria--Finance--History--19th century.
Railroads--Austria--History--19th century.
Railroads--Balkan Peninsula--History--19th century.
Railroads--Economic aspects--Balkan Peninsula--History--19th century.
Princeton subject headings:
Railroads and state--Austria--History.
Railroads--Austria--Finance--History--19th century.
Railroads--Austria--History--19th century.
Railroads--Balkan Peninsula--History--19th century.
Railroads--Economic aspects--Balkan Peninsula--History--19th century.