Columbia subject headings:
Harvard subject headings:
Bologna (Italy)--Politics and government.
Labor unions--Italy--Bologna--Political activity--History--20th century.
Reconstruction (1939-1951)--Italy--Bologna.
Princeton subject headings:
Bologna (Italy)--Politics and government.
Labor unions--Italy--Bologna--Political activity--History--20th century..
Reconstruction (1939-1951)--Italy--Bologna.