Columbia subject headings:
Puerto Rican literature--19th century--History and criticism.
Puerto Rican literature--20th century--History and criticism.
Puerto Rican literature--Puerto Rico--Yauco--History and criticism.
Harvard subject headings:
Puerto Rican poetry--19th century--History and criticism.
Puerto Rican poetry--20th century--History and criticism.
Puerto Rican poetry--Puerto Rico--Yauco.
Princeton subject headings: