Columbia subject headings:
Harvard subject headings:
Austria--History--Socialist Uprising, 1934--Congresses.
Austria--Politics and government--1918-1938--Congresses.
Revolutions--Austria--History--20th century--Congresses.
Princeton subject headings:
Austria--History--Socialist Uprising, 1934--Congresses.
Austria--Politics and government--1918-1938--Congresses.
Revolutions--Austria--History--20th century--Congresses.