Elton, G. (1967). The practice of history. Thomas Y.Cromwell Co..
芝加哥风格引文Elton, G.R. The Practice of History. New York: Thomas Y.Cromwell Co., 1967.
MLA引文Elton, G.R. The Practice of History. Thomas Y.Cromwell Co., 1967.
警告：这些引文格式不一定是100％准确.
APA引文