Columbia subject headings:
Spanish literature--Classical period, 1500-1700.
Spanish poetry--20th century.
Harvard subject headings:
Spanish literature--Classical period, 1500-1700
Spanish poetry--20th century
Spanish poetry--20th century--History and criticism
Spanish poetry--20th century--Sources.
Spanish poetry--Classical period, 1500-1700--History and criticism
Princeton subject headings:
Spanish literature--Classical period, 1500-1700.
Spanish poetry--20th century.