Cita APA

Boyd, E., & Stephens, M. (2010). Activate!, b2 student's book. Pearson-longman.

Citación estilo Chicago

Boyd, Elaine, and Mary Stephens. Activate!, B2 Student's Book. Essex: Pearson-longman, 2010.

Cita MLA

Boyd, Elaine, and Mary Stephens. Activate!, B2 Student's Book. Essex: Pearson-longman, 2010.

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