Columbia subject headings:
Journalism--Social aspects--Spain--Palencia--History--19th century.
Press--Spain--Palencia--History--19th century.
Harvard subject headings:
Journalism--Social aspects--Spain--Palencia--History--19th century.
Press--Spain--Palencia--History--19th century.
Princeton subject headings:
Journalism--Social aspects--Spain--Palencia.
Press--Spain--Palencia--History.