(1981). VOICE of Courage: Selected speeches of Chief Obafemi Awolowo. Olaiya Fagbamigbe Publishers.
芝加哥风格引文VOICE of Courage: Selected Speeches of Chief Obafemi Awolowo. Olaiya Fagbamigbe Publishers, 1981.
MLA引文VOICE of Courage: Selected Speeches of Chief Obafemi Awolowo. Olaiya Fagbamigbe Publishers, 1981.
警告：这些引文格式不一定是100％准确.