Columbia subject headings:
Architecture, Modern--20th century.
Architecture, Modern--21st century.
Tschumi, Bernard, 1944---Notebooks, sketchbooks, etc.
Harvard subject headings:
Architectural drawing--Switzerland--20th century--Catalogs.
Architectural drawing--Switzerland--21st century--Catalogs.
Tschumi, Bernard, 1944---Catalogs.
Princeton subject headings:
Architectural drawing--Switzerland--20th century--Catalogs.
Architectural drawing--Switzerland--21st century--Catalogs.
Catalogs.
Tschumi, Bernard, 1944---Catalogs.