Oxenden, C. (1998). English file: Teacher's book. Oxford: Oxford University Press.
शिकागो स्टाइल उद्धरणOxenden, Clive. English File: Teacher's Book. Oxford: Oxford University Press, 1998.
एमएलए उद्धरणOxenden, Clive. English File: Teacher's Book. Oxford: Oxford University Press, 1998.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.