Columbia subject headings:
Journalism--History--18th century.
Press--History--18th century.
Harvard subject headings:
Journalism--Europe--History--18th century.
Newspapers--Europe--Language--History--18th century.
Periodicals--Europe--History--18th century.
Princeton subject headings:
Journalism--Europe--History--18th century.
Newspapers--Europe--Language--History--18th century.
Periodicals--Europe--History--18th century.