Columbia subject headings:
Harvard subject headings:
Radio broadcasting policy--Austria--History--20th century.
Radio broadcasting policy--Austria.
Radio broadcasting--Austria--Aesthetics.
Radio broadcasting--Austria--History--20th century.
Radio broadcasting--Social aspects--Austria--History--20th century.
Radio programs--Austria--History--20th century.
Princeton subject headings:
Radio broadcasting policy--Austria--History--20th century.
Radio broadcasting--Austria--History--20th century.
Radio programs--Austria--History--20th century.