Lua APA (7ú heag.)

Quattrini, J. A. (1996). Speaking by doing: A speaking-listening text (7th ed.). National Textbook.

Lua i Stíl Chicago (17ú heag.)

Quattrini, Joseph A. Speaking by Doing: A Speaking-listening Text. 7th ed. Lincolnwood, Ill., USA: National Textbook, 1996.

Lua MLA (8ú heag.)

Quattrini, Joseph A. Speaking by Doing: A Speaking-listening Text. 7th ed. National Textbook, 1996.

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