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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.