Columbia subject headings:
Architecture--Europe--History--20th century.
Gregotti Associati.
Harvard subject headings:
Architects--Italy.
Architectural firms--Italy.
Architecture--Italy--21st century.
Architecture--Italy--History--20th century
Gregotti Associati--Criticism and interpretation.
Gregotti, Vittorio--Criticism and interpretation.
Princeton subject headings:
Architecture--Europe--History--20th century.
Gregotti Associati.