Dignen, B. (2007). Fifty ways to improve your presentation skills in English: Without too much effort. Orient BlackSwan.
Style de citation Chicago (17e éd.)Dignen, Bob. Fifty Ways to Improve Your Presentation Skills in English: Without Too Much Effort. Hyderabad: Orient BlackSwan, 2007.
Style de citation MLA (8e éd.)Dignen, Bob. Fifty Ways to Improve Your Presentation Skills in English: Without Too Much Effort. Orient BlackSwan, 2007.
Attention : ces citations peuvent ne pas être correctes à 100%.