Columbia subject headings:
Motion pictures--Spain--History--20th century--Congresses.
Musical theater--Spain--History--20th century--Congresses.
Popular culture--Spain--History--20th century--Congresses.
Zarzuela--Spain--History--20th century--Congresses.
Harvard subject headings:
Princeton subject headings:
Motion pictures--Spain--History--20th century--Congresses.
Musical theater--Spain--History--20th century--Congresses.
Popular culture--Spain--History--20th century--Congresses.
Spain--Social life and customs--20th century--Congresses.
Zarzuela--Spain--History--20th century--Congresses.