Columbia subject headings:
Spain--Civilization--20th century.
Spain--Economic conditions--20th century.
Spain--Social life and customs--20th century.
Harvard subject headings:
Spain--Civilization--20th century--Dictionaries--English.
Spain--Civilization--20th century.
Spain--Economic conditions--20th century.
Spain--Social life and customs--20th century.
Princeton subject headings:
Spain--Civilization--20th century.
Spain--Economic conditions--20th century.
Spain--Social life and customs--20th century.