Columbia subject headings:
Nervi, Pier Luigi--Exhibitions.
Harvard subject headings:
Architecture, Modern--20th century--Exhibitions
Architecture, Modern--21st century
Architecture--Italy--History--20th century--Exhibitions
Concrete construction.
Nervi, Pier Luigi--Exhibitions.
Reinforced concrete construction--History--20th century--Exhibitions.
Princeton subject headings:
Architecture--Italy--History--20th century--Exhibitions.
Nervi, Pier Luigi--Exhibitions.