Columbia subject headings:
Authors and publishers--Spain--History--20th century.
Authorship--Economic aspects--Spain--History--20th century.
Authorship--Social aspects--Spain--History--20th century.
Authorship--Spain--History--20th century.
Sociedad General de Autores de España.
Harvard subject headings:
Spanish literature--20th century--History and criticism
Princeton subject headings:
Authors and publishers--Spain--History--20th century.
Authorship--Economic aspects--Spain--History--20th century.
Authorship--Social aspects--Spain--History--20th century.
Authorship--Spain--History--20th century.
Sociedad General de Autores de España.