Harmer, J. (2007). How to: Teach english. Pearson Education.
Citazione stile Chigago Style (17a edizione)Harmer, Jeremy. How to: Teach English. Essex: Pearson Education, 2007.
Citatione MLA (9a ed.)Harmer, Jeremy. How to: Teach English. Pearson Education, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.