Cita APA (7a ed.)

Turner, C. (2008). Activate! B1 + Grammar and vocabulary. Pearson Education.

Cita Chicago Style (17a ed.)

Turner, Chris. Activate! B1 + Grammar and Vocabulary. Essex: Pearson Education, 2008.

Cita MLA (8a ed.)

Turner, Chris. Activate! B1 + Grammar and Vocabulary. Pearson Education, 2008.