Columbia subject headings:
Puerto Rican literature--20th century--History and criticism--Congresses.
Puerto Rican literature--Foreign countries--Congresses.
Harvard subject headings:
Puerto Rican literature--20th century--History and criticism--Congresses.
Puerto Rican literature--Foreign countries--Congresses.
Princeton subject headings:
Puerto Rican literature--Appreciation--Foreign countries--Congresses.
Puerto Rican literature--History and criticism--Congresses.