Columbia subject headings:
Harvard subject headings:
Cities and towns in literature--Congresses
Spanish drama--20th century--History and criticism--Congresses.
Spanish drama--21st century--History and criticism--Congresses.
Theater--Spain--History--20th century--Congresses.
Theater--Spain--History--21st century--Congresses.
Princeton subject headings:
Cities and towns in literature--Congresses.
Spanish drama--20th century--History and criticism--Congresses.
Spanish drama--21st century--History and criticism--Congresses.
Theater--Spain--History--20th century--Congresses.
Theater--Spain--History--21st century--Congresses.