Columbia subject headings:
Harvard subject headings:
Anti-fascist movements--Italy--Piacenza.
Fascism--Italy--Piacenza.
Piacenza (Italy)--Politics and government.
World War, 1939-1945--Italy--Piacenza.
Princeton subject headings:
Piacenza--History.
World War, 1939-1945--Italy--Piacenza.
World War, 1939-1945--Underground movements--Italy--Piacenza.