Columbia subject headings:
Conspiracies--France--History--19th century--Sources.
Conspiracies--France--History--20th century--Sources.
France--History--19th century--Sources.
France--History--20th century--Sources.
Harvard subject headings:
Conspiracies--France--History--19th century--Sources.
Conspiracies--France--History--20th century--Sources.
France--History--19th century--Sources.
France--History--20th century--Sources.
Princeton subject headings: