Quattrini, J. A. (1996). Speaking by doing: A speaking-listening text. Lincolnwood, Ill., USA: National Textbook Company.
Dyfyniad Arddull ChicagoQuattrini, Joseph A. Speaking By Doing: A Speaking-listening Text. Lincolnwood, Ill., USA: National Textbook Company, 1996.
Dyfyniad MLAQuattrini, Joseph A. Speaking By Doing: A Speaking-listening Text. Lincolnwood, Ill., USA: National Textbook Company, 1996.
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