Theakston, K. (2004). British foreign secretaries since 1974. Routledge.
芝加哥风格引文Theakston, Kevin. British Foreign Secretaries Since 1974. London ; New York: Routledge, 2004.
MLA引文Theakston, Kevin. British Foreign Secretaries Since 1974. Routledge, 2004.
警告:这些引文格式不一定是100%准确.