Columbia subject headings:
Architectural design--History--20th century.
Design--History--20th century.
Design--Italy--History--20th century.
Harvard subject headings:
Architectural design--History--20th century.
Design--History--20th century
Design--Italy--History--20th century
Princeton subject headings:
Architectural design--History--20th century.
Design--History--20th century.
Design--Italy--History--20th century.