Ellen Kisslinger. (1999). Listening focus: Comprehension practice for students of English. HongKong: Longman.
शिकागो स्टाइल उद्धरणEllen Kisslinger. Listening Focus: Comprehension Practice for Students of English. HongKong: Longman, 1999.
एमएलए उद्धरणEllen Kisslinger. Listening Focus: Comprehension Practice for Students of English. HongKong: Longman, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.