APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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