Doff, A. Teach english. A training course for teachers: Trainer´s handbook (10a ed.).
Citazione stile Chigago Style (17a edizione)Doff, Adrian. Teach English. A Training Course for Teachers: Trainer´s Handbook. 10a ed.
Citatione MLA (8a ed.)Doff, Adrian. Teach English. A Training Course for Teachers: Trainer´s Handbook. 10a ed.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.