Columbia subject headings:
Fascism--Italy--Milan--History--Sources.
Milan (Italy)--History--1859-1945--Sources.
Ovra (Organization : Italy)--History--Sources.
Harvard subject headings:
Fascism--Italy--Milan--History--Sources.
Milan (Italy)--History--1859-1945--Sources.
Ovra (Organization : Italy).--History--Sources.
Princeton subject headings:
Fascism--Italy--Milan--History--Sources.
Milan (Italy)--History--1859-1945--Sources.
Ovra (Organization : Italy)--History--Sources.