Cita APA (7a ed.)
Hall, E. J. Practical Conversation in English for Intermediate Students. Simon and Schuster.
Cita estilo Chicago (17a ed.)
Hall, Eugene J. Practical Conversation in English for Intermediate Students. Nueva York, EUA: Simon and Schuster.
Cita MLA (9a ed.)
Hall, Eugene J. Practical Conversation in English for Intermediate Students. Simon and Schuster.
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