Columbia subject headings:
Harvard subject headings:
Excavations (Archaeology)--Switzerland
Inland navigation--Switzerland--History.
Lakes--Social aspects--Switzerland.
Romans--Switzerland
Water resources development--Switzerland--History.
Princeton subject headings:
Excavations (Archaeology)--Switzerland.
Inland navigation--Switzerland--History.
Lakes--Social aspects--Switzerland.
Romans--Switzerland.
Switzerland--Antiquities, Roman.
Water resources development--Switzerland--History.