Columbia subject headings:
Harvard subject headings:
Casentino Valley (Italy)--History.
Italy--History--German occupation, 1943-1945.
Romagna (Italy)--History.
World War, 1939-1945--Underground movements--Italy--Casentino Valley.
World War, 1939-1945--Underground movements--Italy--Romagna.
Princeton subject headings:
World War, 1939-1945--Underground movements--Italy--Casentino River Valley.
World War, 1939-1945--Underground movements--Italy--Romagna.