Cita APA (7th ed.)

Eales, F., & Oakes, S. (2015). Speakout: Upper Intermediate Students' Book with DVD-ROM (2nd Edition.). Pearson Education Limited.

Cita Chicago (17th ed.)

Eales, Frances, i Steve Oakes. Speakout: Upper Intermediate Students' Book with DVD-ROM. 2nd Edition. Essex, England: Pearson Education Limited, 2015.

Cita MLA (9th ed.)

Eales, Frances, i Steve Oakes. Speakout: Upper Intermediate Students' Book with DVD-ROM. 2nd Edition. Pearson Education Limited, 2015.