Rodenburg, P. (1997). The actor speaks: Voice and the performer. Methuen Drama.
Lua i Stíl Chicago (17ú heag.)Rodenburg, Patsy. The Actor Speaks: Voice and the Performer. London: Methuen Drama, 1997.
Lua MLA (9ú heag.)Rodenburg, Patsy. The Actor Speaks: Voice and the Performer. Methuen Drama, 1997.
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