Doff, A. J. (2001). Language in use: Beginner's Classroom book. Cambridge University Press.
Chicago-stil citatDoff, Adrian; Jones. Language in Use: Beginner's Classroom Book. Cambridge: Cambridge University Press, 2001.
MLA-referensDoff, Adrian; Jones. Language in Use: Beginner's Classroom Book. Cambridge University Press, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.