Lougheed, L., & D.Ed. (2010). IELTS: International english language testing system. Tp. Hồ Chí Minh: Trẻ.
शिकागो स्टाइल उद्धरणLougheed, Lin, और D.Ed. IELTS: International English Language Testing System. Tp. Hồ Chí Minh: Trẻ, 2010.
एमएलए उद्धरणLougheed, Lin, और D.Ed. IELTS: International English Language Testing System. Tp. Hồ Chí Minh: Trẻ, 2010.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.