Columbia subject headings:
Statesmen--Germany--Correspondence.
Windthorst, Ludwig Josef Ferdinand Gustav, 1812-1891--Correspondence.
Harvard subject headings:
Statesmen--Germany--Correspondence.
Windthorst, Ludwig Josef Ferdinand Gustav, 1812-1891--Correspondence.
Princeton subject headings:
Statesmen--Germany--Correspondence.
Windthorst, Ludwig Josef Ferdinand Gustav, 1812-1891. Correspondence.