Roper, B. S. (2013). History of democracy: A Marxist interpretation. Pluto Press.
芝加哥风格引文Roper, Brian S. History of Democracy: A Marxist Interpretation. London ; New York: Pluto Press, 2013.
MLA引文Roper, Brian S. History of Democracy: A Marxist Interpretation. Pluto Press, 2013.
警告：这些引文格式不一定是100％准确.