Columbia subject headings:
Communication--Brazil--Congresses.
Information society--Brazil--Congresses.
Mass media--Brazil--Congresses.
Mass media--Social aspects--Brazil--Congresses.
Harvard subject headings:
Communication--Brazil--Congresses.
Information society--Brazil--Congresses.
Mass media--Brazil--Congresses.
Mass media--Social aspects--Brazil--Congresses.
Princeton subject headings:
Communication--Brazil--Congresses.
Information society--Brazil--Congresses.
Mass media--Brazil--Congresses.
Mass media--Social aspects--Brazil--Congresses.