Columbia subject headings:
Architecture--Philosophy.
Architecture--Switzerland--History--20th century.
Zumthor, Peter--Aesthetics.
Harvard subject headings:
Architecture, Modern--20th century--Themes, motives
Architecture, Modern--21st century--Themes, motives.
Architecture--Philosophy
Architecture--Switzerland--History--20th century
Zumthor, Peter--Aesthetics.
Zumthor, Peter.
Princeton subject headings:
Zumthor, Peter.