Marc Helgesen. (1995). Active listening introducing - Teacher's edition: Introducing skills and understanding. Cambridge, UK: Cambridge university press.
शिकागो स्टाइल उद्धरणMarc Helgesen. Active Listening Introducing - Teacher's Edition: Introducing Skills and Understanding. Cambridge, UK: Cambridge university press, 1995.
एमएलए उद्धरणMarc Helgesen. Active Listening Introducing - Teacher's Edition: Introducing Skills and Understanding. Cambridge, UK: Cambridge university press, 1995.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.