Columbia subject headings:
Darío, Rubén, 1867-1916. Azul--Congresses.
Latin American literature--History and criticism--Congresses.
Harvard subject headings:
Darío, Rubén, 1867-1916. Azul--Congresses.
Latin American literature--History and criticism--Congresses.
Princeton subject headings:
Darío, Rubén, 1867-1916. Azul--Congresses.