(2007). The International directory of government (1st ed. (1990)-.). Europa Publications.
芝加哥风格引文The International Directory of Government. 1st ed. (1990)-. London: Europa Publications, 2007.
MLA引文The International Directory of Government. 1st ed. (1990)-. Europa Publications, 2007.
警告：这些引文格式不一定是100％准确.