Cita APA (7th ed.)

Doff, A., & Jones, C. (2000). Language in use: Pre-intermediate (New edition.). Cambridge University Press.

Cita Chicago (17th ed.)

Doff, Adrian, i Christopher Jones. Language in Use: Pre-intermediate. New edition. Cambridge: Cambridge University Press, 2000.

Cita MLA (8th ed.)

Doff, Adrian, i Christopher Jones. Language in Use: Pre-intermediate. New edition. Cambridge University Press, 2000.