Cita APA (7a ed.)
Dobson, J. M., & Sedwick, F. Conversation in English: Points of Departure. American Book.
Cita estilo Chicago (17a ed.)
Dobson, Julia M., y Frank Sedwick. Conversation in English: Points of Departure. Nueva York, EUA: American Book.
Cita MLA (9a ed.)
Dobson, Julia M., y Frank Sedwick. Conversation in English: Points of Departure. American Book.
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