Columbia subject headings:
Exhibitions--Switzerland--History--20th century--Exhibitions.
Landscape architecture--Switzerland--History--20th century--Exhibitions.
Sculpture gardens--Switzerland--History--20th century--Exhibitions.
Harvard subject headings:
Exhibitions--Switzerland--History--20th century--Exhibitions.
Landscape architecture--Switzerland--Exhibitions.
Landscape architecture--Switzerland--History--20th century--Exhibitions.
Landscape gardening--Switzerland--Exhibitions--History.
Sculpture gardens--Switzerland--History--20th century--Exhibitions.
Princeton subject headings:
Gardens--Switzerland--History--Exhibitions.
Landscape gardening--Switzerland--History--Exhibitions.