Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.