Columbia subject headings:
Architecture, Domestic--Switzerland--Basel--Congresses.
Architecture, Domestic--Switzerland--Basel--Exhibitions.
Architecture--Switzerland--Basel--History--20th century--Congresses.
Architecture--Switzerland--Basel--History--20th century--Exhibitions.
Harvard subject headings:
Apartment houses--Switzerland--Basel--Exhibitions.
Architecture, Domestic--Switzerland--Basel--Exhibitions.
Housing policy--Switzerland--Basel.
Housing--Switzerland--Basel--Exhibitions.
Princeton subject headings: