Cita APA (7a ed.)

Doff, A., & Jones, C. (1994). Language in use. Intermediate: Classroom book (5a. ed.). Cambridge University.

Cita Chicago Style (17a ed.)

Doff, Adrian, y Christopher Jones. Language in Use. Intermediate: Classroom Book. 5a. ed. Cambridge: Cambridge University, 1994.

Cita MLA (9a ed.)

Doff, Adrian, y Christopher Jones. Language in Use. Intermediate: Classroom Book. 5a. ed. Cambridge University, 1994.