Columbia subject headings:
Harvard subject headings:
Labor movement--Austria--History--20th century.
Labor movement--Austria--History--21st century.
Labor unions--Austria--History--20th century.
Labor unions--Austria--History--21st century.
Österreichischer Gewerkschaftsbund--History--20th century.
Österreichischer Gewerkschaftsbund--History--21st century.
Princeton subject headings:
Labor movement--Austria--History.
Labor unions--Austria--History.
Österreichischer Gewerkschaftsbund--History.