Cita APA (7a ed.)
Harmer, J., Tuffnell, M., Goodman, A., Summers, P., Clifford, A., & Newstead, A. The Practice of English Language Teaching. Pearson.
Cita estilo Chicago (17a ed.)
Harmer, Jeremy, Mark Tuffnell, Alex Goodman, Phil Summers, Andy Clifford, y Amy Newstead. The Practice of English Language Teaching. Essex, Inglaterra: Pearson.
Cita MLA (9a ed.)
Harmer, Jeremy, et al. The Practice of English Language Teaching. Pearson.
Precaución: Estas citas no son 100% exactas.