Columbia subject headings:
Harvard subject headings:
Austria--In literature--Congresses.
Austrian literature--History and criticism--Congresses
Culture in literature--Congresses.
Spain--In literature--Congresses.
Spanish literature--History and criticism--Congresses
Princeton subject headings:
Austria--In literature--Congresses.
Austrian literature--History and criticism--Congresses.
Culture in literature--Congresses.
Spain--In literature--Congresses.
Spanish literature--History and criticism--Congresses.