Columbia subject headings:
Communism--Italy--Favara--History.
Labor disputes--Italy--Favara--History.
Working class--Italy--Favara--History.
Harvard subject headings:
Communism--Italy--Favara--History.
Labor disputes--Italy--Favara--History.
Working class--Italy--Favara--History.
Princeton subject headings:
Communism--Italy--Favara (Sicily)--History.
Labor disputes--Italy--Favara (Sicily)--History.
Working class--Italy--Favara (Sicily)--History.