Cita APA

Doff, A., & Jones, C. 1. (1994). Language in use: Intermediate. Cambridge University.

Citación estilo Chicago

Doff, Adrian, y Christopher 1937- Jones. Language in Use: Intermediate. Cambridge University, 1994.

Cita MLA

Doff, Adrian, y Christopher 1937- Jones. Language in Use: Intermediate. Cambridge University, 1994.