Columbia subject headings:
Spanish drama--19th century--History and criticism.
Spanish drama--20th century--History and criticism.
Spanish drama--Appreciation--Italy.
Theater--Italy--History--20th century.
Harvard subject headings:
Spanish drama--History and criticism.
Theater--Italy--History.
Princeton subject headings:
Spanish drama--19th century--History and criticism.
Spanish drama--20th century--History and criticism.
Spanish drama--Appreciation--Italy.
Theater--Italy--History--20th century.