Citazione Stile APA (7a Edizione)

Richards, J. C. (2006). Person to person: Communicative speaking and listening skills (3rd ed.). Oxford.

Citazione stile Chigago Style (17a edizione)

Richards, Jack C. Person to Person: Communicative Speaking and Listening Skills. 3rd ed. New York: Oxford, 2006.

Citatione MLA (8a ed.)

Richards, Jack C. Person to Person: Communicative Speaking and Listening Skills. 3rd ed. Oxford, 2006.