एपीए उद्धरण

Nunan, D., & David Nunan. (2003). Practical english language teaching. Boston: McGraw Hill.

शिकागो स्टाइल उद्धरण

Nunan, David, और David Nunan. Practical English Language Teaching. Boston: McGraw Hill, 2003.

एमएलए उद्धरण

Nunan, David, और David Nunan. Practical English Language Teaching. Boston: McGraw Hill, 2003.