Yost, G. (1989). The KGB: The Russian secret police from the days of the czars to the present. Facts on File.
芝加哥风格引文Yost, Graham. The KGB: The Russian Secret Police from the Days of the Czars to the Present. New York: Facts on File, 1989.
MLA引文Yost, Graham. The KGB: The Russian Secret Police from the Days of the Czars to the Present. Facts on File, 1989.
警告：这些引文格式不一定是100％准确.