Columbia subject headings:
Harvard subject headings:
Freemasonry--Germany--History--19th century.
Freemasonry--Germany--History--20th century.
Freemasons. Grand Orient de France--History.
Revolutions--History--19th century.
Revolutions--History--20th century
Princeton subject headings:
Freemasonry--Germany--History--19th century.
Freemasonry--Germany--History--20th century.
Freemasons. Grand Orient de France--History.
Revolutions--History--19th century.
Revolutions--History--20th century.