Columbia subject headings:
Apartment houses--France--Paris--History--20th century--Exhibitions.
Architecture--France--Paris--History--20th century--Exhibitions.
City planning--France--Paris--History--20th century--Exhibitions.
Paris (France)--Buildings, structures, etc.--History--20th century--Exhibitions.
Harvard subject headings:
Apartment houses--France--Paris--History--20th century.
Architecture--France--Paris--20th century.
Paris (France)--Buildings, structures, etc.
Princeton subject headings:
Architecture--France--Paris--Exhibitions.
Paris (France)--Buildings, structures, etc.--History--20th century--Exhibitions.