Columbia subject headings:
American newspapers--Ownership.
English newspapers--Ownership.
Newspaper publishing--Great Britain.
Newspaper publishing--United States.
Harvard subject headings:
Journalists--Great Britain--Biography
Journalists--United States--Biography
Press--Great Britain--History.
Press--United States--History
Princeton subject headings:
Journalists--Great Britain--Biography.
Journalists--United States--Biography.
Press--Great Britain--History.
Press--United States--History.