Doff, A., & Jones, C. (1997). Language in use: Upper-intermediate : self-study workbook. Cambridge: Cambridge U. P..
Style de citation ChicagoDoff, Adrian, et Christopher Jones. Language in Use: Upper-intermediate : Self-study Workbook. Cambridge: Cambridge U. P., 1997.
Style de citation MLADoff, Adrian, et Christopher Jones. Language in Use: Upper-intermediate : Self-study Workbook. Cambridge: Cambridge U. P., 1997.
Attention : ces citations peuvent ne pas être correctes à 100%.