Citazione Stile APA (7a Edizione)
Doff, A., & Jones, C. (1999). Language in use beginner. Self - study workbook: With answer key. Cambridge University Press.
Citazione stile Chigago Style (17a edizione)
Doff, Adrian, e Christopher Jones. Language in Use Beginner. Self - Study Workbook: With Answer Key. Cambridge: Cambridge University Press, 1999.
Citatione MLA (9a ed.)
Doff, Adrian, e Christopher Jones. Language in Use Beginner. Self - Study Workbook: With Answer Key. Cambridge University Press, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.