Columbia subject headings:
Harvard subject headings:
Art, Prehistoric--Switzerland--Catalogs.
Art, Prehistoric--Switzerland.
Petroglyphs--Switzerland--Catalogs.
Petroglyphs--Switzerland.
Switzerland--Antiquities--Catalogs.
Switzerland--Antiquities.
Princeton subject headings:
Art, Prehistoric--Switzerland.
Petroglyphs--Switzerland.
Switzerland--Antiquities.