Cita APA (7th ed.)

Doff, A. Teach english. A training course for teachers: Trainer´s handbook (10a ed.).

Cita Chicago (17th ed.)

Doff, Adrian. Teach English. A Training Course for Teachers: Trainer´s Handbook. 10a ed.

Cita MLA (8th ed.)

Doff, Adrian. Teach English. A Training Course for Teachers: Trainer´s Handbook. 10a ed.