Cita APA (7th ed.)

Harmer, J. (2001). The practice of English language teaching (3rd edition.). Longman.

Cita Chicago (17th ed.)

Harmer, Jeremy. The Practice of English Language Teaching. 3rd edition. Harlow, Essex: Longman, 2001.

Cita MLA (9th ed.)

Harmer, Jeremy. The Practice of English Language Teaching. 3rd edition. Longman, 2001.