APA (7th ed.) Citation

DOFF, A. (2001). Language in use: Upper-intermediate(self study workbook with answer key)/Andrian Doff and Christopher Jones. Cambridge University Press.

Chicago Style (17th ed.) Citation

DOFF, Adrian. Language in Use: Upper-intermediate(self Study Workbook with Answer Key)/Andrian Doff and Christopher Jones. Cambridge: Cambridge University Press, 2001.

MLA (8th ed.) Citation

DOFF, Adrian. Language in Use: Upper-intermediate(self Study Workbook with Answer Key)/Andrian Doff and Christopher Jones. Cambridge University Press, 2001.