Columbia subject headings:
World War, 1939-1945--Atrocities.
World War, 1939-1945--Collaborationists.
World War, 1939-1945--Moral and ethical aspects.
World War, 1939-1945--Underground movements.
Harvard subject headings:
World War, 1939-1945--Atrocities.
World War, 1939-1945--Collaborationists.
World War, 1939-1945--Moral and ethical aspects.
World War, 1939-1945--Underground movements.
Princeton subject headings:
World War, 1939-1945--Atrocities.
World War, 1939-1945--Collaborationists.
World War, 1939-1945--Moral and ethical aspects.
World War, 1939-1945--Underground movements.