Doff, A., & Jones, C. (2000). Language in use: Pre-intermediate (New edition.). Cambridge University Press.
Chicago Style aipamenaDoff, Adrian, and Christopher Jones. Language in Use: Pre-intermediate. New edition. Cambridge: Cambridge University Press, 2000.
MLA aipamenaDoff, Adrian, and Christopher Jones. Language in Use: Pre-intermediate. New edition. Cambridge University Press, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.