Columbia subject headings:
Harvard subject headings:
Agriculture, Cooperative--Italy--Ravenna (Province)--History--20th century.
Cagnoni, Pietro.
Fascism--Italy--Ravenna (Province)--History--20th century.
Federazione delle cooperative della Provincia di Ravenna--History--20th century.
Princeton subject headings:
Agriculture, Cooperative--Italy--Ravenna (Province)--History--20th century.
Cagnoni, Pietro.
Fascism--Italy--Ravenna (Province)--History--20th century.
Federazione delle cooperative della Provincia di Ravenna--History--20th century.