Columbia subject headings:
Harvard subject headings:
Saarland (Germany)--Historical geography.
Saarland (Germany)--History--19th century.
Saarland (Germany)--History--20th century.
Princeton subject headings:
Saarland (Germany)--Historical geography.
Saarland (Germany)--History--19th century.
Saarland (Germany)--History--20th century.