McCallion, M. (1998). The voice book: For everyone who wants to make the most of their voice ([New ed.].). Faber.
Chicago Style (17th ed.) CitationMcCallion, Michael. The Voice Book: For Everyone Who Wants to Make the Most of Their Voice. [New ed.]. London: Faber, 1998.
MLA (9th ed.) CitationMcCallion, Michael. The Voice Book: For Everyone Who Wants to Make the Most of Their Voice. [New ed.]. Faber, 1998.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.