Kaplan, J. (1967). Mark Twain: A profile. Hill and Wang.
芝加哥风格引文Kaplan, Justin. Mark Twain: A Profile. New York: Hill and Wang, 1967.
MLA引文Kaplan, Justin. Mark Twain: A Profile. Hill and Wang, 1967.
警告：这些引文格式不一定是100％准确.
APA引文