एपीए उद्धरण

Sasikumar, V. E. (2005). Course in listening and speaking I. Foundation books.

शिकागो स्टाइल उद्धरण

Sasikumar, V. Etc. Course in Listening and Speaking I. New Delhi: Foundation books, 2005.

एमएलए उद्धरण

Sasikumar, V. Etc. Course in Listening and Speaking I. Foundation books, 2005.