Columbia subject headings:
Architecture--France--Paris--History--20th century.
City planning--France--Paris--History--20th century.
Paris (France)--Buildings, structures, etc.
Harvard subject headings:
Architecture--France--Paris--21st century.
Architecture--France--Paris--History--20th century
City planning--France--Paris
City planning--France--Paris--History--20th century.
Paris (France)--Buildings, structures, etc.
Princeton subject headings:
Architecture--France--Paris--20th century.
City planning--France--Paris--History--20th century.
Paris (France)--Buildings, structures, etc.