Cita APA (7a ed.)

Harmer, J. (2007). The practice of English language teaching (4th ed.). Pearson Longman.

Cita Chicago Style (17a ed.)

Harmer, Jeremy. The Practice of English Language Teaching. 4th ed. Harlow, England: Pearson Longman, 2007.

Cita MLA (8a ed.)

Harmer, Jeremy. The Practice of English Language Teaching. 4th ed. Pearson Longman, 2007.