Richards, J. C. (2006). Person to person: Communicative speaking and listening skills (3rd ed.). Oxford.
Chicago-referens (17:e uppl.)Richards, Jack C. Person to Person: Communicative Speaking and Listening Skills. 3rd ed. New York: Oxford, 2006.
MLA-referens (8:e uppl.)Richards, Jack C. Person to Person: Communicative Speaking and Listening Skills. 3rd ed. Oxford, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.