एपीए उद्धरण

 Harmer, J. (2015).  The practice of English language teaching.  Pearson Education.

शिकागो स्टाइल उद्धरण

 Harmer, Jeremy.  The Practice of English Language Teaching.  Pearson Education, 2015.

एमएलए उद्धरण

 Harmer, Jeremy.  The Practice of English Language Teaching.  Pearson Education, 2015.