Citazione Stile APA (7a Edizione)
Alexander, L. G. (1989). Developing Skills: An integrated course for intermediate students. Longman Group UK.
Citazione stile Chigago Style (17a edizione)
Alexander, Louis George. Developing Skills: An Integrated Course for Intermediate Students. Essex: Longman Group UK, 1989.
Citatione MLA (9a ed.)
Alexander, Louis George. Developing Skills: An Integrated Course for Intermediate Students. Longman Group UK, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.