Columbia subject headings:
Harvard subject headings:
Hillside architecture--Switzerland--Pictorial works.
Land use--Switzerland--History--20th century--Pictorial works.
Urbanization--Switzerland--Pictorial works.
Princeton subject headings:
Hillside architecture--Switzerland--Pictorial works.
Land use--Switzerland--History--20th century--Pictorial works.
Urbanization--Switzerland--Pictorial works.