McCallion, M. (1998). The voice book: For everyone who wants to make the most of their voice ([New ed.].). Faber.
Citace podle Chicago (17th ed.)McCallion, Michael. The Voice Book: For Everyone Who Wants to Make the Most of Their Voice. [New ed.]. London: Faber, 1998.
Citace podle MLA (9th ed.)McCallion, Michael. The Voice Book: For Everyone Who Wants to Make the Most of Their Voice. [New ed.]. Faber, 1998.
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