Columbia subject headings:
Harvard subject headings:
Architects--Italy.
Architecture, Modern--19th century--Italy.
Architecture--Italy--History--20th century
Costantini, Costantino, 1854-1937--Criticism and interpretation.
Costantini, Costantino, 1854-1937.
Princeton subject headings:
Architecture--Italy--19th century.
Architecture--Italy--History--20th century.
Costantini, Costantino, 1854-1937.