Columbia subject headings:
Journalism--Societies, etc.--Directories.
Motion pictures--Societies, etc.--Directories.
Radio broadcasting--Societies, etc.--Directories.
Television broadcasting--Societies, etc.--Directories.
Harvard subject headings:
Journalism--Societies, etc.--Directories.
Motion pictures--Societies, etc.--Directories.
Radio broadcasting--Societies, etc.--Directories.
Television broadcasting--Societies, etc.--Directories.
Princeton subject headings: