Doff, A. J. (2001). Language in use: Beginner's Classroom book. Cambridge University Press.
Citación estilo ChicagoDoff, 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.
Warning: These citations may not always be 100% accurate.