Columbia subject headings:
Literature and technology--Spain.
Lyric poetry--History and criticism.
Spanish poetry--19th century--History and criticism.
Spanish poetry--20th century--History and criticism.
Harvard subject headings:
Literature and technology--Congresses.
Poetry, Modern--20th century--History and criticism--Congresses.
Spanish poetry--20th century--History and criticism--Congresses
Technology in literature--Congresses.
Princeton subject headings:
Literature and technology--Congresses.
Poetry, Modern--20th century--History and criticism--Congresses.
Spanish poetry--20th century--History and criticism--Congresses.
Technology in literature--Congresses.