Columbia subject headings:
Italy--Politics and government--20th century.
Labor unions and communism--Italy.
Labor unions--Political activity--Italy.
Labor--Religious aspects--Christianity--Italy--History.
Harvard subject headings:
Italy--Politics and government--1945-1976.
Italy--Politics and government--20th century.
Labor unions and communism--Italy.
Labor unions--Italy--History--20th century
Labor unions--Political activity--Italy
Labor--Italy--Religious aspects--Christianity.
Labor--Religious aspects--Christianity--Italy.
Princeton subject headings:
Italy--Politics and government--1945-1976.
Italy--Politics and government--1976-1994.
Labor unions and communism--Italy.
Labor unions--Italy--History--20th century.
Labor unions--Political activity--Italy.
Labor--Religious aspects--Christianity--Italy.