Silver, F. (1988). Auditioning for the musical theatre. Penguin Books.
Lua i Stíl Chicago (17ú heag.)Silver, Fred. Auditioning for the Musical Theatre. New York, N.Y., U.S.A.: Penguin Books, 1988.
Lua MLA (9ú heag.)Silver, Fred. Auditioning for the Musical Theatre. Penguin Books, 1988.
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