Columbia subject headings:
Architecture--Environmental aspects--Switzerland.
Architecture--Switzerland--History--20th century.
Architecture--Switzerland--History--21st century.
Harvard subject headings:
Architecture--Environmental aspects--Switzerland.
Architecture--Switzerland--History--20th century
Architecture--Switzerland--History--21st century.
Princeton subject headings:
Architecture--Environmental aspects--Switzerland.
Architecture--Switzerland--History--20th century.
Architecture--Switzerland--History--21st century.