Redston, C., Cunningham, G., Warwick, L., & Young, A. (2006). Face2face: Intermediate teacher's book. Cambridge University Press.
Cita Chicago (17th ed.)Redston, Chris, Gillie Cunningham, Lindsay Warwick, i Anna Young. Face2face: Intermediate Teacher's Book. New York: Cambridge University Press, 2006.
Cita MLA (9th ed.)Redston, Chris, et al. Face2face: Intermediate Teacher's Book. Cambridge University Press, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.