Columbia subject headings:
Harvard subject headings:
Esposizione internazionale del Sempione (1906 : Milan, Italy)--Congresses.
Exhibitions--Italy--Milan--History--20th century--Congresses.
Industrialization--Italy--Milan--Exhibitions--History--20th century--Congresses.
Milan (Italy)--History--20th century--Congresses.
Science and civilization--History--20th century--Congresses.
Technology--Italy--Milan--Exhibitions--History--20th century--Congresses.
Princeton subject headings:
Esposizione internazionale del Sempione (1906 : Milan, Italy)--Congresses.
Milan (Italy)--History--20th century--Congresses.
Science and civilization--Italy--Milan--History--20th century--Congresses.