एपीए उद्धरण

Harmer, J. (2007). How to teach writing. Harlow: Pearson Education Limited.

शिकागो स्टाइल उद्धरण

Harmer, Jeremey. How to Teach Writing. Harlow: Pearson Education Limited, 2007.

एमएलए उद्धरण

Harmer, Jeremey. How to Teach Writing. Harlow: Pearson Education Limited, 2007.