Knickerbocker, H. R. (1942). Is tomorrow Hitler's?: 115 questions on the battle of mankind. Penguin Books.
芝加哥风格引文Knickerbocker, H. R. Is Tomorrow Hitler's?: 115 Questions on the Battle of Mankind. Harmondsworth, Eng.: Penguin Books, 1942.
MLA引文Knickerbocker, H. R. Is Tomorrow Hitler's?: 115 Questions on the Battle of Mankind. Penguin Books, 1942.
警告：这些引文格式不一定是100％准确.