Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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