Columbia subject headings:
Architecture--Italy--History--20th century.
Piacentini, Marcello, 1881-1960--Criticism and interpretation.
Harvard subject headings:
Architects--Italy.
Architecture--Italy--History--20th century
Piacentini, Marcello, 1881-1960--Criticism and interpretation.
Princeton subject headings:
Architecture--Italy--History--20th century.
Piacentini, Marcello, 1881-1960--Criticism and interpretation.