Cita APA (7a ed.)
Harmer, J. (2006). The practice of english language teaching (3a. ed.). Longman.
Cita Chicago Style (17a ed.)
Harmer, Jeremy. The Practice of English Language Teaching. 3a. ed. London: Longman, 2006.
Cita MLA (9a ed.)
Harmer, Jeremy. The Practice of English Language Teaching. 3a. ed. Longman, 2006.
Precaución: Estas citas no son 100% exactas.