Thrush, E. A. (1997). Interactions I: A multi-skills activity book. New York: McGraw-Hill.
Trích dẫn kiểu ChicagoThrush, Emily Austin. Interactions I: A Multi-skills Activity Book. New York: McGraw-Hill, 1997.
Deismireacht MLAThrush, Emily Austin. Interactions I: A Multi-skills Activity Book. New York: McGraw-Hill, 1997.
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