Columbia subject headings:
Harvard subject headings:
Mass media policy--Europe.
Mass media policy--Great Britain.
Mass media--Economic aspects
Mass media--Ownership--Europe.
Mass media--Ownership--Great Britain.
Princeton subject headings:
Mass media policy--Europe.
Mass media policy--Great Britain.
Mass media--Economic aspects--Great Britain.
Mass media--Ownership--Europe.
Mass media--Ownership--Great Britain.