Ballard, B. (1992). Teaching students from overseas. Longman.
शिकागो स्टाइल उद्धरणBallard, Brigil. Teaching Students From Overseas. Longman, 1992.
एमएलए उद्धरणBallard, Brigil. Teaching Students From Overseas. Longman, 1992.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.