Columbia subject headings:
Spanish drama--20th century--Congresses.
Valle-Inclán, Ramón del, 1866-1936--Congresses.
Harvard subject headings:
Spanish drama--20th century--Congresses.
Valle-Inclán, Ramón del, 1866-1936--Congresses.
Princeton subject headings:
Spanish drama--20th century--Congresses.
Valle-Inclán, Ramón del, 1866-1936--Congresses.