Citazione Stile APA (7a Edizione)

Doff, A., & Jones, C. (1998). Language in use: Pre-intermediate : classroom book A (3rd ed.).

Citazione stile Chigago Style (17a edizione)

Doff, Adrian, e Christopher Jones. Language in Use: Pre-intermediate : Classroom Book A. 3rd ed. Cambridge, 1998.

Citatione MLA (9a ed.)

Doff, Adrian, e Christopher Jones. Language in Use: Pre-intermediate : Classroom Book A. 3rd ed. 1998.