WORLD.. & DELURY, G. E. (1987). World encyclopedia of political system and parties vol. 1: Afganistan - Luxembourg. Facts on File Publications.
芝加哥风格引文WORLD.. 与 George E. DELURY. World Encyclopedia of Political System and Parties Vol. 1: Afganistan - Luxembourg. New York: Facts on File Publications, 1987.
MLA引文WORLD.. 与 George E. DELURY. World Encyclopedia of Political System and Parties Vol. 1: Afganistan - Luxembourg. Facts on File Publications, 1987.
警告：这些引文格式不一定是100％准确.