Columbia subject headings:
Architecture, Modern--21st century--Exhibitions.
Architecture--Exhibitions--History--21st century.
International Architectural Exhibition--History--21st century.
Harvard subject headings:
Architecture, Modern--21st century--Exhibitions
Architecture--Exhibitions--History--21st century.
International Architectural Exhibition--History--21st century.
Princeton subject headings:
Architecture, Modern--21st century--Exhibitions.
Architecture--Exhibitions--History--21st century.
International Architectural Exhibition--History--21st century.