Laing, L. H. (1950). Source book in European governments. Sloane.
芝加哥风格引文Laing, Lionel Hassell. Source Book in European Governments. New York: Sloane, 1950.
MLA引文Laing, Lionel Hassell. Source Book in European Governments. Sloane, 1950.
警告：这些引文格式不一定是100％准确.