Cita APA

Doff, A., & Jones, C. (1997). Language in use: Upper-intermediate : self-study workbook [Băng Casset]. Cambridge: Cambridge U. P..

Citación estilo Chicago

Doff, Adrian, y Christopher Jones. Language in Use: Upper-intermediate : Self-study Workbook [Băng Casset]. Cambridge: Cambridge U. P., 1997.

Cita MLA

Doff, Adrian, y Christopher Jones. Language in Use: Upper-intermediate : Self-study Workbook [Băng Casset]. Cambridge: Cambridge U. P., 1997.