Columbia subject headings:
Costume--Italy--Milan.
Opera--Stage-setting and scenery--Italy--Milan.
Oppo, Cipriano Efisio, 1891-1962.
Scene painting--Italy--Milan.
Teatro alla Scala.
Harvard subject headings:
Costume--Italy--Milan.
Opera--Stage-setting and scenery--Italy--Milan
Oppo, Cipriano Efisio, 1891-1962
Scene painting--Italy--Milan.
Teatro alla Scala
Princeton subject headings: