Columbia subject headings:
Catholic Church--Spain--History--20th century--Sources.
Church and state--Spain--History--20th century--Sources.
Spain--Church history--20th century--Sources.
Harvard subject headings:
Catholic Church--Spain--History--20th century--Sources.
Church and state--Spain--History--20th century--Sources.
Church and state--Spain--History--Sources.
Spain--Church history--20th century--Sources.
Spain--Church history--Sources.
Princeton subject headings:
Church and state--Spain--History--Sources.
Spain--Church history--Sources.