Richards, J. C. (2006). Person to person: Communicative speaking and listening skills (3rd ed.). Oxford.
Цитирование в стиле Чикаго (17-е изд.)Richards, Jack C. Person to Person: Communicative Speaking and Listening Skills. 3rd ed. New York: Oxford, 2006.
Цитирование MLA (8-е изд.)Richards, Jack C. Person to Person: Communicative Speaking and Listening Skills. 3rd ed. Oxford, 2006.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.