Columbia subject headings:
Harvard subject headings:
Theater--Latin America--History--20th century.
Theater--Latin America--History.
Theater--Portugal--History--20th century.
Theater--Portugal--History.
Theater--Spain--History--20th century.
Theater--Spain--History.
Princeton subject headings:
Brazilian drama--History and criticism.
Portuguese drama--History and criticism.
Spanish American drama--History and criticism.
Spanish drama--History and criticism.
Theater--Latin America--History.
Theater--Portugal--History.
Theater--Spain--History.