Columbia subject headings:
Bürglen (Castle)--History.
Bürglen (Uri, Switzerland)--Social conditions.
Saint Gall (Switzerland)--Politics and government.
Thurgau (Switzerland)--History.
Harvard subject headings:
Bürglen (Uri, Switzerland)--Social conditions.
Bürglen (Castle)--History.
Saint Gall (Switzerland)--Politics and government.
Thurgau (Switzerland)--History.
Princeton subject headings:
Bürglen (Castle)--History.
Bürglen (Thurgau, Switzerland)--Social conditions.
Saint Gall (Switzerland)--Politics and government.
Thurgau (Switzerland)--History.