Pethybridge, R. (1972). The spread of the Russian Revolution: Essays on 1917. London: Macmillan.
芝加哥风格引文Pethybridge, Roger. The Spread of the Russian Revolution: Essays on 1917. London: Macmillan, 1972.
MLA引文Pethybridge, Roger. The Spread of the Russian Revolution: Essays on 1917. London: Macmillan, 1972.
警告：这些引文格式不一定是100％准确.