Columbia subject headings:
Harvard subject headings:
Bergamo (Italy)--History.
Catholics--Italy--Bergamo.
World War, 1939-1945--Religious aspects--Catholic Church
World War, 1939-1945--Underground movements--Italy--Bergamo.
Princeton subject headings:
Bergamo (Italy)--History, Military.
Catholics--Italy--Bergamo.
World War, 1939-1945--Catholic Church.
World War, 1939-1945--Underground movements--Italy--Bergamo.