Columbia subject headings:
Merchant ships--History--20th century.
World War, 1939-1945--Atrocities.
World War, 1939-1945--Pacific Ocean.
World War, 1939-1945--Transportation.
Harvard subject headings:
Merchant ships--History--20th century.
World War, 1939-1945--Atrocities.
World War, 1939-1945--Pacific Ocean.
World War, 1939-1945--Transportation.
Princeton subject headings:
Bushido.
World War, 1939-1945--Atrocities--Japan.