Columbia subject headings:
Democracy--Spain--History--19th century.
Freemasonry--Spain--History--19th century.
Harvard subject headings:
Democracy--Spain--History--19th century.
Freemasonry--Spain--History--19th century.
Princeton subject headings:
Freemasonry--Spain--History--19th century.
Freemasons. Grande Oriente Español
Spain--History--1868-1931.