Richards, J. C., & London, A. (2006). Person to Person: Communicative speaking and listening skills : Starter (3rd ed.). Oxford: Oxford Univ. Press.
Chicago-стиль цитированияRichards, Jack C., và Andy London. Person to Person: Communicative Speaking and Listening Skills : Starter. 3rd ed. Oxford: Oxford Univ. Press, 2006.
MLA-цитированиеRichards, Jack C., và Andy London. Person to Person: Communicative Speaking and Listening Skills : Starter. 3rd ed. Oxford: Oxford Univ. Press, 2006.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.