Doff, A. J. (2001). Language in use: Beginner's Classroom book. Cambridge University Press.
Chicago Edition CitationDoff, Adrian; Jones. Language in Use: Beginner's Classroom Book. Cambridge: Cambridge University Press, 2001.
Cita MLADoff, Adrian; Jones. Language in Use: Beginner's Classroom Book. Cambridge University Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.