Cita APA

Doff, A., & Becket, C. (1991). Listening 2. Cambridge: Cambridge University Press.

Citación estilo Chicago

Doff, Adrian, and Carolyn Becket. Listening 2. Cambridge: Cambridge University Press, 1991.

Cita MLA

Doff, Adrian, and Carolyn Becket. Listening 2. Cambridge: Cambridge University Press, 1991.