Harmer, J. (2007). The practice of English language teaching (4th ed.). Pearson Longman.
Citazione stile Chigago Style (17a edizione)Harmer, Jeremy. The Practice of English Language Teaching. 4th ed. Harlow, England: Pearson Longman, 2007.
Citatione MLA (8a ed.)Harmer, Jeremy. The Practice of English Language Teaching. 4th ed. Pearson Longman, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.