Columbia subject headings:
Radio broadcasting--France--History--20th century--Congresses.
Radio broadcasting--Social aspects--France--History--20th century--Congresses.
Television broadcasting--France--History--20th century--Congresses.
Television broadcasting--Social aspects--France--History--20th century--Congresses.
Harvard subject headings:
Radio broadcasting--France--History--20th century--Congresses.
Radio broadcasting--Social aspects--France--History--20th century--Congresses.
Television broadcasting--France--History--20th century--Congresses.
Television broadcasting--Social aspects--France--History--20th century--Congresses.
Princeton subject headings: