Columbia subject headings:
Literature and society--Spain--History--19th century.
Literature and society--Spain--History--20th century.
Press, Socialist--Spain--History--19th century.
Press, Socialist--Spain--History--20th century.
Spanish literature--History and criticism.
Harvard subject headings:
Newspaper reading.
Press, Socialist--Spain--History.
Socialism and literature--Spain.
Socialism--Spain--History
Spanish literature--19th century--Themes, motives.
Spanish literature--20th century--Themes, motives.
Spanish literature--History and criticism
Working class--Books and reading--Spain
Princeton subject headings:
Press, Socialist--Spain--History.
Socialism and literature--Spain--History.
Spanish literature--19th century--History and criticism.
Spanish literature--20th century--History and criticism.
Working class writings--History and criticism.