Berthoff, R. T. (1971). An unsettled people: Social order and disorder in American history ([1st ed.].). Harper & Row.
芝加哥风格引文Berthoff, Rowland Tappan. An Unsettled People: Social Order and Disorder in American History. [1st ed.]. New York: Harper & Row, 1971.
MLA引文Berthoff, Rowland Tappan. An Unsettled People: Social Order and Disorder in American History. [1st ed.]. Harper & Row, 1971.
警告：这些引文格式不一定是100％准确.