Dyfyniad APA

Theobald, T. (2013). Develop your presentation skills (Second edition.). Kogan Page Ltd.

Dyfyniad Arddull Chicago

Theobald, Theo. Develop Your Presentation Skills. Second edition. Philadelphia, PA: Kogan Page Ltd, 2013.

Dyfyniad MLA

Theobald, Theo. Develop Your Presentation Skills. Second edition. Kogan Page Ltd, 2013.

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