Tanka, J., Most, P., & Baker, L. R. (2003). Interactions 1: Listening/speaking (4th ed.). McGraw-Hill.
Cita Chicago Style (17a ed.)Tanka, Judith, Paul Most, y Lida R. Baker. Interactions 1: Listening/speaking. 4th ed. New York: McGraw-Hill, 2003.
Cita MLA (8a ed.)Tanka, Judith, et al. Interactions 1: Listening/speaking. 4th ed. McGraw-Hill, 2003.
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