Citazione Stile APA (7a Edizione)
Case, D., & Milne, J. (1984). Developing Writing Skills in English. Heinemann International a division of Heinemann Educational Books Ltd.
Citazione stile Chigago Style (17a edizione)
Case, Doug, e John Milne. Developing Writing Skills in English. London: Heinemann International a division of Heinemann Educational Books Ltd, 1984.
Citatione MLA (9a ed.)
Case, Doug, e John Milne. Developing Writing Skills in English. Heinemann International a division of Heinemann Educational Books Ltd, 1984.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.