JONATHAN, G. (2015). History beckons: A collection of speeches, volume II. Office of the Special Adviser to the President on Research, Documentation.
芝加哥风格引文JONATHAN, Goodluck. History Beckons: A Collection of Speeches, Volume II. Office of the Special Adviser to the President on Research, Documentation, 2015.
MLA引文JONATHAN, Goodluck. History Beckons: A Collection of Speeches, Volume II. Office of the Special Adviser to the President on Research, Documentation, 2015.
警告：这些引文格式不一定是100％准确.