Cita APA

 Harmer, J. (2007).  How to teach English.  Pearson.

Chicago Style Citation

 Harmer, Jeremy.  How to Teach English.  Pearson, 2007.

Cita MLA

 Harmer, Jeremy.  How to Teach English.  Pearson, 2007.

Atenció: Aquestes cites poden no estar 100% correctes.