Cita APA (7a ed.)

Harmer, J. (2006). The practice of English language teaching (3rd ed., completely rev & updated, [4th pr.].). Longman.

Cita Chicago Style (17a ed.)

Harmer, Jeremy. The Practice of English Language Teaching. 3rd ed., completely rev & updated, [4th pr.]. Essex, England: Longman, 2006.

Cita MLA (9a ed.)

Harmer, Jeremy. The Practice of English Language Teaching. 3rd ed., completely rev & updated, [4th pr.]. Longman, 2006.