Doff & Jones. (1997). Language in use: Upper-intermediate classroom book. Cambridge University Press.
Chicago Style (17th ed.) CitationDoff and Jones. Language in Use: Upper-intermediate Classroom Book. Cambridge: Cambridge University Press, 1997.
MLA (9th ed.) CitationDoff and Jones. Language in Use: Upper-intermediate Classroom Book. Cambridge University Press, 1997.
Warning: These citations may not always be 100% accurate.