Columbia subject headings:
France--History.
France--Relations--Switzerland.
Roulet, Louis Edouard.
Switzerland--History.
Switzerland--Relations--France.
Harvard subject headings:
France--History.
France--Relations--Switzerland.
Roulet, Louis Edouard.
Switzerland--History.
Switzerland--Relations--France.
Princeton subject headings:
France--History.
France--Relations--Switzerland.
Roulet, Louis Edouard.
Switzerland--History.
Switzerland--Relations--France.