Theobald, T. (2013). Develop your presentation skills (Second edition.). Kogan Page Ltd.
芝加哥风格引文Theobald, Theo. Develop Your Presentation Skills. Second edition. Philadelphia, PA: Kogan Page Ltd, 2013.
MLA引文Theobald, Theo. Develop Your Presentation Skills. Second edition. Kogan Page Ltd, 2013.
警告：这些引文格式不一定是100％准确.