Columbia subject headings:
Cuban literature--20th century--History and criticism.
Cuban poetry--20th century--History and criticism.
Guillén, Nicolás, 1902-1989--Criticism and interpretation.
Harvard subject headings:
Guillén, Nicolás, 1902-1989--Criticism and interpretation.
Princeton subject headings:
Guillén, Nicolás, 1902-1989--Criticism and interpretation.