Cita APA

Cunningham, G., Bell, J. 1., & Redston, C. (2009). Face2face: Advanced. Cambridge: Cambridge University Press.

Citación estilo Chicago

Cunningham, Gillie, Jan 1953 Bell, y Chris Redston. Face2face: Advanced. Cambridge: Cambridge University Press, 2009.

Cita MLA

Cunningham, Gillie, Jan 1953 Bell, y Chris Redston. Face2face: Advanced. Cambridge: Cambridge University Press, 2009.