Citazione Stile APA (7a Edizione)
Soars, J., & Soars, L. (2003). New Headway. English Course. Elementary: Workbook with key. Oxford University Press.
Citazione stile Chigago Style (17a edizione)
Soars, John, e Liz Soars. New Headway. English Course. Elementary: Workbook with Key. Oxford: Oxford University Press, 2003.
Citatione MLA (9a ed.)
Soars, John, e Liz Soars. New Headway. English Course. Elementary: Workbook with Key. Oxford University Press, 2003.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.