Columbia subject headings:
Harvard subject headings:
Journalism--History--19th century--Congresses.
Journalism--History--20th century--Congresses.
Journalism--History--21st century--Congresses.
Journalism--History--Congresses.
Journalism--Technological innovations--Congresses.
Mass media and technology--Congresses.
Online journalism--Congresses.
Princeton subject headings:
Journalism--History--Congresses.
Journalism--Technological innovations--Congresses.
Online journalism--Congresses.