Columbia subject headings:
Bern (Switzerland : Canton)--History.
Transportation--Switzerland--Bern (Canton)--History.
Transportation--Switzerland--Valais--History.
Valais (Switzerland)--History.
Harvard subject headings:
Bern (Switzerland : Canton)--History.
Transportation--Switzerland--Bern (Canton)--History.
Transportation--Switzerland--Valais--History.
Valais (Switzerland)--History.
Princeton subject headings:
Bern (Switzerland : Canton)--History.
Transportation--Switzerland--Bern (Canton)--History.
Transportation--Switzerland--Valais--History.
Valais (Switzerland)--History.