Corbett, C. (2019). The Art of plain speaking: How to write and speak in a way that will impress the people that matter. Routledge, Taylor & Francis Group.
Chicago-referens (17:e uppl.)Corbett, Charlie. The Art of Plain Speaking: How to Write and Speak in a Way That Will Impress the People That Matter. London, New York, NY: Routledge, Taylor & Francis Group, 2019.
MLA-referens (9:e uppl.)Corbett, Charlie. The Art of Plain Speaking: How to Write and Speak in a Way That Will Impress the People That Matter. Routledge, Taylor & Francis Group, 2019.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.