Twain, M. (1966). The innocents abroad or the new pilgrims progress. New American Library.
芝加哥风格引文Twain, Mark. The Innocents Abroad or the New Pilgrims Progress. New York: New American Library, 1966.
MLA引文Twain, Mark. The Innocents Abroad or the New Pilgrims Progress. New American Library, 1966.
警告：这些引文格式不一定是100％准确.