Lua APA (7ú heag.)

MAYER, L. V. (1985). Fundamentals of voice and diction. WEB.

Lua i Stíl Chicago (17ú heag.)

MAYER, Lyle V. Fundamentals of Voice and Diction. Iowa: WEB, 1985.

Lua MLA (9ú heag.)

MAYER, Lyle V. Fundamentals of Voice and Diction. WEB, 1985.

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