Hapgood, N. (1899). Abraham Lincoln: The man of the people. The Macmillan company.
芝加哥风格引文Hapgood, Norman. Abraham Lincoln: The Man of the People. New York: The Macmillan company, 1899.
MLA引文Hapgood, Norman. Abraham Lincoln: The Man of the People. The Macmillan company, 1899.
警告：这些引文格式不一定是100％准确.