Columbia subject headings:
Architecture--Italy--Milan--History--20th century.
Stadiums--Italy--Milan.
Harvard subject headings:
Architecture, Modern--20th century--Italy--Milan.
Milan (Italy)--Buildings, structures, etc.
San Siro (Stadium : Milan, Italy)
Stadiums--Italy--Milan.
World Cup (Soccer) (1990)
Princeton subject headings:
Architecture, Modern--20th century--Italy--Milan.
Stadiums--Italy--Milan.