Cita APA

Kerr, P., & Jones, C. (2005). Straightforward: Intermediate student́s book. Oxford: Macmillan Education.

Citación estilo Chicago

Kerr, Philip, and Ceri Jones. Straightforward: Intermediate Student́s Book. Oxford: Macmillan Education, 2005.

Cita MLA

Kerr, Philip, and Ceri Jones. Straightforward: Intermediate Student́s Book. Oxford: Macmillan Education, 2005.

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