Cita APA (7th ed.)

Redston, C., & Cunningham, G. (2006). Face2face: Intermediate student´s book. Cambridge University.

Cita Chicago (17th ed.)

Redston, Chris, i Gillie Cunningham. Face2face: Intermediate Student´s Book. Cambridge: Cambridge University, 2006.

Cita MLA (9th ed.)

Redston, Chris, i Gillie Cunningham. Face2face: Intermediate Student´s Book. Cambridge University, 2006.