Columbia subject headings:
Harvard subject headings:
Austria--Emigration and immigration--Economic aspects--Congresses.
Austria--Population--Economic aspects--Congresses.
Budget--Austria--Congresses.
Finance, Public--Austria--Congresses.
Princeton subject headings:
Austria--Emigration and immigration--Economic aspects--Congresses.
Austria--Population--Economic aspects--Congresses.
Budget--Austria--Congresses.
Finance, Public--Austria--Congresses.